Software Development Jobs

Engineering Lead at Multifactor | Y Combinator The Role We're hiring our first Engineering Lead — someone who can own the technical execution of our platform while helping shape how we build as a team. This is not a "manage from a distance" role. You'll be deep in the code alongside the founder, making architectural decisions that directly affect how millions of accounts are secured. You'll also be the person who starts to define our engineering culture, hiring bar, and development practices as we grow from a founding team into a world-class engineering org. What You'll Do Build and ship core platform features across Multifactor's product suite. Own technical architecture for systems that must be correct-by-construction. Work directly with the founder (CEO) to translate research breakthroughs into production-grade software that enterprises and consumers trust with their most sensitive accounts. Define engineering standards — from code review and CI/CD to incident response and on-call. You'll set the patterns the next 10+ engineers inherit. Hire and mentor the early engineering team. You'll help identify, attract, and develop the kind of rigorous, curious engineers this problem demands. Bridge product and research helping prioritize what to build next by balancing customer needs, security guarantees, and the pace required at a seed-stage startup. Who You Are 8+ years of software engineering experience, with at least 2 years in a lead or senior role where you owned significant technical decisions. A hands-on builder first. You write and ship features yourself — not just delegate them. You'll spend a significant portion of your time in the codebase, delivering production code alongside the team. This role leads from the front. Strong systems-level builder. You've designed and shipped backend systems — APIs, distributed services, data pipelines — in production environments where correctness and reliability matter. Security-minded by default. You think about threat models, not just feature specs. Experience with authentication systems, identity protocols, key management, or applied cryptography is a strong plus. Comfortable with ambiguity. You can take a research paper or a customer conversation and turn it into a production-ready feature without needing a 40-page spec. A force multiplier. You make the people around you better — through clear technical communication, thoughtful code review, and a bias toward unblocking others. Excited by hard problems. Post-quantum cryptography, agentic AI security, and zero-trust architecture are not just buzzwords to you — they're problems worth spending a career on. Nice to Have Experience designing and structuring engineering teams — defining roles, establishing team topologies, and building hiring processes from scratch. Background in machine learning or ML infrastructure — particularly as it relates to AI agent systems, anomaly detection, or applying ML to security problems. Experience with cryptographic libraries, protocols (TLS, OAuth, FIDO2), or formal verification. Familiarity with post-quantum algorithms (CRYSTALS-Kyber, CRYSTALS-Dilithium, lattice-based schemes). Background in security research, published work, or contributions to open-source security tools. Previous experience at an early-stage startup (seed or Series A) where you helped scale an engineering team from 0 → 10+. Experience building web and mobile applications, browser extensions, secure enclaves, or isolated execution environments. Compensation & Benefits Salary: $165,000-$195,000 Equity: 1.0%-4.0% (negotiable for the right person) Unlimited PTO with a culture that actually encourages using it Wellbeing & professional development reimbursements Commuter benefits for getting to our SF office Employer-sponsored retirement savings (401k w/ matching) Employer-sponsored dental, vision, health, and life benefits

Multifactor (YC F25) Is Hiring an Engineering Lead | Discussion

Customer Success Engineer (AI & Data Migration) at Stardex | Y Combinator Stardex is an AI-native ATS and CRM built specifically for executive search firms. We're backed by Y Combinator and are changing how recruiting firms leverage their data and institutional knowledge. Our customers are boutique and mid-market executive search firms who are moving off legacy platforms — and they need someone to make that transition seamless. 🔍 Who are you? You're comfortable writing TypeScript/SQL scripts to transform, clean, and migrate messy data from one system to another You're extremely detail-oriented. Data migration has zero margin for error and you take pride in getting things right. You instinctively reach for AI tools (Claude Code, Cursor, etc.) to automate repetitive work rather than doing it manually. You're always looking for ways to use AI to make processes faster and more efficient. You have some understanding of database optimization — you know why a poorly structured query or schema matters You can communicate clearly with both technical and non-technical people when needed You have a "whatever it takes" attitude. If something needs to go live by Friday, you figure it out. You write clean, maintainable code and document your work so processes get better over time ✨ Bonus points if you... Have worked with CRMs or ATS platforms before (or any system with messy, relational data) Have experience with APIs, data pipelines, or ETL processes Have hands-on experience with database performance tuning, indexing, or query optimization Have done any kind of customer-facing technical work — support, consulting, freelance projects, anything Have worked at an early-stage startup 🎉 Why work with us? You'll be the first person in this role, which means you get to define how Stardex onboards customers from the ground up You'll work directly with our founders (Sanket & Pranav) and have real ownership from day one You'll learn a ton about AI, SaaS, and the recruiting industry We’ll provide whatever you need to be productive Interested? Apply here or email Sanket directly at sanket(at)stardex.ai (http://stardex.ai) with a short note on why this role excites you. We are open to recent grads as well for this role.

Stardex (YC S21) is hiring customer success engineers | Discussion

Mechanical Design Engineer (Founding Team/Consultant) at Structured AI | Y Combinator As a Mechanical Design Engineer (Founding Team) at Structured, you will sit at the intersection of professional engineering judgment and frontier AI. This is a product forward role. You aren't just performing engineering tasks; you are productizing engineering intelligence. Working directly with our CTO and CPO, you will translate the nuances of HVAC systems, building codes, and MEP coordination into autonomous AI agents. Your mission is to ensure our platform delivers professional-grade accuracy while mitigating risk for the world’s largest engineering firms. Core responsibilities: Encode Expertise: Translate complex mechanical logic and industry standards into structured patterns our AI agents can execute. Product Co-Design: Partner with engineering to test features, ship weekly, and ensure outputs meet a "PE-level" bar of excellence. Strategic Delivery: Lead the technical delivery of AI-produced reports for enterprise clients, identifying the edge cases that drive our next model iteration. Customer Front-Lines: Join technical discovery with top-tier MEP firms to map their internal standards and pain points. Scale Systems: Identify recurring design patterns across massive datasets to build automated "checks" into the core platform. Who you are: Industry Veteran: 2+ years at a construction or MEP firm. You’ve lived the pain of manual reviews and Revit-based documentation. QA/QC Specialist: You have a proven track record of performing formal peer reviews and catching the errors others miss. Systems Thinker: You can abstract patterns from specific projects and turn them into universal engineering logic. Hacker Mindset: You are a clear, structured communicator who is naturally inclined to automate your own workflows. Nice to haves: Experience with multi-disciplinary coordination (Mechanical, Electrical, Structural). Familiarity with AI/ML tools or early-stage startup environments. Visa: CPT Eligible Compensation: $80,000 — 85,000 (Full-time) Consulting option: Competitive hourly or project-based rate

Structured AI (YC F25) Is Hiring | Discussion

Jobs at Reflex | Y Combinator Jobs at Reflex

Reflex (YC W23) Is Hiring Software Engineers – Python | Discussion

Enterprise Account Executive (AE) at Kyber | Y Combinator At Kyber, we're building the next-generation document platform for enterprises. Today, our AI-native solution transforms regulatory document workflows, enabling insurance claims organizations to consolidate 80% of their templates, spend 65% less time drafting, and compress overall communication cycle times by 5x. Our vision is for every enterprise to seamlessly leverage AI templates to generate every document. Over the past 18 months, we’ve: >30x’d revenue and are profitable. Landed multiple six and seven figure, multi-year contracts with leading insurance enterprises, all through word of mouth. Launched strategic partnerships with industry leading software partners like Guidewire, Majesco, and Lob. Kyber is backed by top Silicon Valley VCs, including Y Combinator and Fellows Fund. We’re now looking for elite Enterprise Account Executives who can drive pipeline, navigate complex multi-threaded enterprise sales environments, close deals, and own the full sales cycle in order to scale our impact across the insurance industry and beyond. Responsibilities: You'll play a critical role in driving revenue growth by: Owning the Full Sales Cycle: Execute end-to-end enterprise sales processes, handling everything from outbound prospecting to contract execution Qualify leads, conduct discovery, demo Kyber’s solution, build business cases, draft pricing proposals, and guide prospects through a complex buying process Develop deep relationships with multiple stakeholders within an account, from end users to C-level decision-makers Attend and represent Kyber at high-impact conferences, industry events, and in-person meetings Executing Outbound Strategies: Identify qualified stakeholders and executive decision makers that align to Kyber’s ICP, conducting deep research for personalized insights Create, validate, and execute outbound strategies (cold calls, emails, LinkedIn messaging) Creatively chase leads with in person offices visits, guerilla marketing campaigns, and scoping in person insurance informational events Leverage AI-native tools (ex. AI-SDR, 11x) to scale validated outbound playbooks Enhancing Sales Operations: Proactively participate in weekly GTM meetings, report on pipeline health and maintain accurate forecasts using Hubspot. Provide insights and feedback from prospects to refine our messaging and positioning. Help shape and define new sales motions for different stakeholders and account types to unlock sales entry points.     * Strategic Account Management: * Build personalized strategies for target accounts, navigating enterprise sales motions with discipline and creativity * Cultivate champions who can drive internal buy-in and accelerate deal cycles What We're Looking For in You: Olympic Work Ethic Focused On Results: Building a billion dollar business is a competition at the highest level. You're here to work harder than you ever have to win. Proven track record of meeting or exceeding quotas and consistently putting in the work to generate outsized revenue outcomes. Outstanding Communication Skills: Comfortable engaging executives and clearly articulating AI solutions and software. Lead with active listening first and  empathize with customer pain points to drive to an appropriate technical solution. Relentlessly Resourceful: Able to think creatively and outside of the box with the resources you have available to land massive clients. Handle endless rejection while consistently getting closer to the outcome you want. Team Player with an Owner’s Mindset: You thrive on problem solving and owning your business, and will roll up your sleeves to do whatever it takes to get things done. Our Values Possible Until Proven Otherwise Challenge assumptions with evidence. If it’s impossible, show us why. LOVE Your Customer Put customers at the heart of everything. Earn trust, deliver value, grow together. Take Pride In Your Craft Creating something from nothing is a privilege - embrace the process and perfect the details. Live Up To Your Expectations Set your standards high and let’s exceed them together - because no one should expect more of you than yourself. Have Fun & Nurture Those Around You The joy of building is amplified when shared. Remember to support, uplift, and celebrate each other as we grow. Benefits Competitive salary Generous stock package 100% employer-covered medical, dental, and vision insurance The chance to help shape a category-defining company Why Kyber? Join us in building and scaling a game-changing enterprise product powered by state-of-the-art AI. At Kyber, your contributions will directly impact how businesses handle some of their most critical workflows and customer interactions. If you’re obsessed with growth, AI, and transforming enterprise workflows, we’d love to hear from you! How To Stand Out We want to hear from extraordinary individuals who are ready to shape the future of enterprise documents. To stand out, ask someone you’ve worked with to send your resume or LinkedIn profile, along with a brief 2-3 sentence endorsement, directly to arvind [at] askkyber.com (http://askkyber.com). Referrals matter - they help us understand the impact you’ve already had and the kind of teammate you’ll be. A strong referee can elevate your application, so choose someone who knows your skills and character well. Apply today and help us bring enterprise documents into the AI-native age. *Listed salary range is for OTE

Kyber (YC W23) Is Hiring an Enterprise Account Executive | Discussion

Software Engineer at Ubicloud | Y Combinator Ubicloud is an open source alternative to AWS. Our cloud services include elastic compute, block storage, CI/CD (GitHub Actions), K8s, managed Postgres, and AI inference. Today, we serve 500+ customers on our managed cloud. We’re now hiring engineers to help us with our Postgres, GitHub Actions, and AI inference products. Who we are With our product(s), we make informed bets on market fundamentals. We then use customer feedback to keep making those products better. To do this well, we enable our team. We’re deliberate about communicating structures. We ensure that people closest to problems have the agency to solve them and take accountability for outcomes. The tech world changes constantly. New hardware, new customer needs, new competitive dynamics. We expect everyone here to grow alongside it. Growth mindset (vs fixed mindset) isn't something we talk about in offsites and forget. We’re energized by learning new things and we aspire to get a little bit better each day. At Ubicloud, we’re also applying AI tools / techniques more and more during our software development processes. We’d like to share more when we chat in person. What we are looking for We’re hiring for mid-stage software engineers. You’d hold the equivalent of a Computer Science degree and 2 to 8 years of relevant experience. We’re looking for people who impress us. If you’ve built something impressive before, we’d like to hear more about it. We hire for motivated and talented developers. We also hire for the slope and not the y-intercept. If you have credible experience in having built managed Postgres or distributed inference architectures, that’s a plus. On the inference side, we’re looking into DeepSeek (https://github.com/deepseek-ai/open-infra-index/blob/main/202502OpenSourceWeek/day_6_one_more_thing_deepseekV3R1_inference_system_overview.md) and Kimi’s (https://github.com/kvcache-ai/Mooncake) open source architectures. We’re primarily hiring for San Francisco, the Netherlands, and Turkey. When applying, please indicate the location you’re applying for.

Ubicloud (YC W24): Software Engineer – $95-$250K in Turkey, Netherlands, CA | Discussion

Founding Reliability & Performance Engineer at LiteLLM | Y Combinator TLDR LiteLLM is an open-source AI gateway (36K+ GitHub stars) that routes hundreds of millions of LLM API calls daily for companies like NASA, Adobe, Netflix, Stripe, and Nvidia. We're at $7M ARR, 10 people, YC W23. When LiteLLM goes down, our customers' entire AI stack goes down. We need someone who makes sure that doesn't happen. You'd be the first dedicated reliability hire. You'll own reliability, performance, and production stability end-to-end. Nobody will tell you how to do it What this job actually is We'll be straight with you: this role is roughly 60% operational reliability and 40% deep performance engineering. On any given week you might be: Hunting a memory leak in our async streaming handler that causes OOMs after 4 hours under load Fixing a race condition where PodLockManager releases another pod's lock Profiling why update_database() does 7 deep copies per request in the spend tracking hot path Helping a Fortune 500 customer debug why their 20-pod deployment is exhausting Postgres connections Building soak tests that catch degradation before a release goes out Reviewing a PR that touches the request hot path and saying "this will add 50ms at P99, here's why" If you're looking for a pure optimization role where you sit in a profiler all day — this isn't it. If you want to own production health for one of the most widely deployed AI infrastructure projects in the world — keep reading. Why this matters We route traffic for some of the largest AI deployments on the planet. One customer is scaling from 20M to 200M daily AI calls through our gateway. Another has 150K users hitting us daily. When we ship a bad release, it doesn't just break a dashboard — it breaks production AI systems at companies you've heard of. The problems here are genuinely hard: Memory management in long-running Python async services — our proxy handles thousands of concurrent streaming connections. HTTP client sessions, response iterators, and background tasks all need careful lifecycle management. Database at scale — spend logging, auth, and rate limiting all interact with Postgres. At 100K+ requests/day, naive patterns fall apart. 100+ provider surface area — we translate between OpenAI, Anthropic, Bedrock, Vertex, and 100+ other APIs. Each has unique streaming behavior. A refactor that fixes one provider can break three others. You won't run out of interesting problems. What you'll own Production reliability On-call for critical issues (shared rotation with the team, not solo) Incident response and blameless post-mortems Customer escalation support for enterprise deployments Making the proxy self-healing when DB/Redis is temporarily unavailable Performance engineering Memory leak detection and prevention (soak tests, CI integration) Hot path optimization — our target is <10ms overhead at 5K+ RPS P50/P95/P99 latency benchmarks that block releases on regression Profiling and fixing bottlenecks (Pydantic validation, connection pools, async task scheduling) Observability & release safety Structured logging, distributed tracing, correlation IDs Prometheus metrics that are actually accurate and actionable Building toward canary deployments and automated rollback SLO definition and tracking for enterprise customers Who you are Must have: 2+ years of experience running Python services in production, with real exposure to debugging things that break at scale Strong understanding of Python async internals — asyncio event loop, aiohttp/httpx session management, connection pooling Experience debugging production memory leaks, OOMs, or latency degradation (bonus if you've used memray, py-spy, or tracemalloc) Solid PostgreSQL knowledge — connection pool tuning, query optimization, understanding how DB operations on the request path degrade under load Comfort with Kubernetes at an operational level — pod lifecycle, resource limits, health probes You've been on-call before and you didn't hate it Strong signals: You've worked on a proxy, API gateway, load balancer, or middleware service where overhead itself is what you optimize You've worked at Meta (Production Engineering), Cloudflare, Fastly, Datadog, Stripe, or a similar infrastructure company You've been an early reliability/infra hire at a startup and built production practices from scratch You've contributed to open-source infrastructure projects You understand HTTP/2, streaming responses (SSE), and how async Python handles them under concurrency Why LiteLLM Scale & impact: Your work is in the critical path for hundreds of millions of AI API calls daily. NASA, Netflix, Adobe, Stripe depend on this. Open source visibility: 36K GitHub stars. Your contributions are visible to the entire AI infrastructure community. Your GitHub profile will look incredible. Ownership: First dedicated reliability hire. You define what reliability means here. No bureaucracy, no tickets — you see a problem, you fix it. Trajectory: $7M ARR growing fast, 10-person team, YC W23. Meaningful equity at a stage where it can matter.

LiteLLM (YC W23): Founding Reliability Engineer – $200K-$270K and 0.5-1.0% equity | Discussion

Founding Infrastructure Engineer at Event Horizon Labs | Y Combinator Founding Infrastructure Engineer Event Horizon Labs — San Francisco (in-person) We're a small, tight-knit team building autonomous research infrastructure from scratch. The orchestrator, the agents, the compounding knowledge base are already discovering profitable strategies and scaling with each new model release. These are founding roles with competitive salary and equity. The next breakthrough isn't a better model — it's infrastructure for autonomous problem-solving. Markets are the first domain because feedback is immediate, signal is verifiable, and outcomes are directly monetizable. What we're building doesn't stop at markets. Team from Citadel, Jump Trading, Stanford, Caltech, Berkeley. You build the platform everything runs on. Design the orchestration layer that dispatches parallel research sessions, the data pipelines that feed them, the observability that monitors them, and the trading systems that act on what they find. Distributed systems meets autonomous AI infrastructure. You might work on Compute scheduling and resource allocation across hundreds of agents Streaming data pipelines for real-time market ingestion Agent observability, experiment tracking, and reproducibility at scale Low-latency trading system design and optimization Details Stack: Python, Go, Kubernetes, streaming data, low-latency systems Location: San Francisco (in-person) Comp: Competitive salary + meaningful founding equity

Event Horizon Labs (YC W24) Is Hiring | Discussion

Founders Associate at Corgi Labs | Y Combinator Who we are About Corgi Labs Corgi Labs uses proprietary AI to optimize payment acceptance, boosting revenue through superior fraud prevention. We are data-driven with an explainable AI approach for transparency About the team We’re looking for Founder's Associates (2 roles: 1 in US and 1 in Singapore) to work closely with the founders at Corgi Labs. This role is for someone who enjoys bringing structure to chaos and owning operational details end-to-end. You’ll sit at the center of the business, across internal ops, external partners, and founder priorities, helping turn decisions into execution. What you’ll do We seek a Founder's Associate to work closely with the founders. This role demands bringing structure to chaos, owning end-to-end operational details, and translating decisions into execution across internal ops, external partners, and founder priorities. You will work directly with the founders to provide structure, clarity, and follow-through on the company’s highest priorities. This role blends strategic thinking with strong operational execution, involving setting up lightweight processes, coordinating teams, resolving blockers, and ensuring project completion. Your focus is maintaining priority alignment and allowing founders to concentrate on building and selling. Responsibilities  Founder support: Prepare, unblock, and follow through on key initiatives. Execution & follow-through: Track priorities, actions, and deadlines to ensure completion. Cross-functional coordination: Serve as the central link between founders, teammates, and external partners/vendors. Process & clarity: Introduce helpful, lightweight structure, documentation, and workflows. Partner with teams to integrate with existing systems and infrastructure. Who you are Highly reliable and detail-oriented; prioritizes accuracy and follow-through, even in ambiguous contexts. Logical, calm, and strong at prioritising; can clarify ambiguity, identify critical tasks, and make steady progress. Comfortable as a generalist across operations, coordination, administration, and people-related work, enjoying process improvement.

Corgi Labs (YC W23) Is Hiring | Discussion

Software Engineer, Platform at Sim | Y Combinator About Sim Sim is the open-source platform to build, deploy, and orchestrate AI agents. Over 70,000 developers — from early-stage startups to the U.S. Department of Defense — use Sim to turn ideas into production-grade agentic workflows on a visual, Figma-like canvas. We connect to 1,000+ apps and LLMs, and our Copilot is the state of the art for building workflows with natural language. We're a team of 5, YC X25, and backed by a $7M Series A led by Standard Capital with participation from Paul Graham, Perplexity, SV Angel, and Y Combinator. We're based in San Francisco and build in person every day. Our mission is simple: agents will run the world, and Sim is the primary means by which that happens. About the Role You'll lead the Sim platform: the visual, end-to-end agent builder that tens of thousands of developers use every day. You'll own the front-end architecture, the real-time canvas, and the systems that turn visual flows into reliable, production agents. Sim has been called the "Figma for AI agents" — an intuitive drag-and-drop canvas where developers connect LLMs, tools, APIs, and logic blocks into complex agentic workflows. Your job is to make this experience fast, delightful, and powerful enough that developers never want to go back to writing agents in code. This is a foundational role. You'll define the front-end architecture, set performance standards, and shape the developer ergonomics of a product used by 70,000+ builders. On a team of 5, you own the entire surface area that developers interact with. What You'll Do Own the Sim visual canvas — the real-time, drag-and-drop workflow editor at the heart of the product Architect and build the front-end systems that render, connect, and manage complex agent workflows Design the interaction model for how developers create, test, debug, and deploy agents visually Build the bridge between visual flows and the underlying execution engine — ensuring what you see is what runs Drive performance and responsiveness across the editor, even as workflows grow in complexity Shape developer ergonomics and UX patterns across the platform — block configuration, variable wiring, real-time feedback, deployment flows Work across the stack in our Next.js monorepo when needed, shipping to production daily Set front-end standards for the codebase — component architecture, state management, testing patterns What We're Looking For Design-minded full-stack engineer with deep React and TypeScript experience Strong sense of product and UX — you care deeply about how things feel, not just how they work Experience building complex, interactive UIs — canvas editors, real-time collaborative tools, visual programming environments, or similarly demanding front-end systems Track record of shipping polished developer tools or creative tools to production Deep understanding of front-end performance — you know how to keep complex interfaces fast and responsive High agency and ownership — on a team this small, you define the roadmap as much as you execute it Comfort working across the stack in a Next.js monorepo; backend work is part of the job Experience with real-time systems (WebSockets, CRDTs, or similar) is a plus Experience with AWS infrastructure is a plus Contributions to open-source projects are a plus Why Sim Foundational impact. You're not joining a team — you're building one. Every decision you make shapes the product and the company. Real users, real scale. 70,000+ developers use Sim today. Your work ships fast and matters immediately. World-class backers. Series A - Paul Graham, Perplexity, SV Angel, and Y Combinator believe in what we're building. Open source at the core. We've been open source from day one and we're proud of it. 26,000+ GitHub stars and growing. Competitive salary + meaningful equity. Early team, significant ownership. Full benefits. Comprehensive health insurance, relocation. Visa sponsorship available.

SIM (YC X25) Is Hiring the Best Engineers in San Francisco | Discussion

Senior+ Product Designer at Hadrius | Y Combinator This is a full-time role to be a Senior Product Designer, located onsite in New York, NY. Design @ Hadrius Like many other fields in tech, how design teams operate is shifting dramatically. That means Figma is being used less and less (https://jonnyburch.com/life-after-figma), while agents (https://agentation.dev/) are being used more and more. Counter-intuitively though, this means that designers with hard-skills (light coding, speed, design craft) are needed more than ever. At Hadrius, we’re leaning into this: Design is integrated into the codebase, with engineers The feedback loop on designs is very fast (24 hours is a long time!) mercury.com (http://mercury.com) sets the bar for us on craft and design excellence As a Senior Product Designer at Hadrius, you’ll be expected to raise the bar on these ideas. What You'll Do & Your Impact Timeline Within your first week: Get a walkthrough of the platform, Figma files, and Design system from our Founding Product Designer, Anushriya (https://www.linkedin.com/in/anushriyabhardwaj/). Get your coding environment set up (IDE, coding agent, MCPs, etc.). Lead your first customer call to gain firsthand insight into user challenges. Dive deep into a core module of the Hadrius platform to understand its current state. Get up to speed on our core problem, ideal customer profile (ICP), value proposition, and product roadmap. Within your first month: Ship your first major design project, setting a new bar for quality and user-centricity. Create, document, and begin implementing the Hadrius Design System to accelerate our product development velocity. Establish the core design rituals and processes (critiques, user research cadence, etc.) that will allow us to scale. Become the go-to partner for the CTO on product strategy, roadmap planning, and defining what we build next. Within your first 3 months and beyond: Own the end-to-end design of complex, ambiguous, 0-to-1 product initiatives. Scale the design function and play a key role in hiring future members of the team Act as the primary voice of the customer in strategic conversations, ensuring user needs drive company priorities. Visibly raise the bar for product quality across the entire company, holding engineering and product accountable for delivering exceptional user experiences. About You A Master of Your Craft: You are a highly competent and seasoned designer. Your portfolio demonstrates strategic, systems-level thinking and exceptional visual and interaction design skills. With many years of experience, you have both breadth and depth. Strategic Partner & Mentor: You don't just execute on a vision; you help create it. You are a player-coach who elevates the work of everyone around you. Thrives in Ambiguity: You are energized by complex, loosely defined problems and have a track record of creating clarity and direction from chaos. All-In: This is not a 9-5. You understand that building a category-defining company requires immense focus and commitment. We are optimizing for the best, and we compensate generously for it. Strategic Ownership: You take complete ownership of the user experience and its impact on the business, from high-level strategy down to the individual pixels on the screen. Qualifications 6+ years of professional experience in Product Design, with a portfolio/experience showcasing your work on complex, shipped products. Proven experience leading the design of products from 0-to-1 or navigating significant product redesigns. Experience building and maintaining design systems that accelerate development. An expert communicator who can articulate design strategy and rationale to engineers, executives, and customers with equal clarity. Deep proficiency in Figma and other modern design and prototyping tools. (Preferred) Experience in B2B SaaS, enterprise software and fintech. Benefits & Perks Competitive salary and a significant equity package. 401(k) with 100% match up to 6%. Premium healthcare, dental, and vision insurance. The opportunity to build the design function and culture at a world-class company. 18k/yr housing stipend if you live near the office / lower manhattan

Hadrius (YC W23) Is Hiring Designers Who Code | Discussion

A Full Stack Engineer (with something to prove) at Hyperbound | Y Combinator We're probably not the right fit for you. We're in-person, 5 days a week. We move fast and expect a lot. You'll ship something the night before a customer demos it in front of 20,000 sales reps at their SKO. You'll watch a feature you built be the reason a customer signs an $800K contract. That kind of thing either sounds like your dream or your nightmare. \ \ If it's the former, that's the job. If you'd rather have more structure and a clearer lane, this probably isn't it. \ \ Still here? Good. What we're building Hyperbound is the Revenue Activation Platform; An agentic OS for sales that closes the loop between behavior, coaching, and execution. Not a tool that watches what happened. A system that changes what happens next and literally changes the structure of our customer sales orgs in the process. IBM, LinkedIn, Bloomberg, Supabase, Monday.com, Notion, and Vanta are just a few of our customers. They renew. They expand. We just 5xed in ARR the last year and are growing nearly 20% month over month. We just raised a $15M Series A, and had a $1M new ARR week to end the last quarter. 50% of everything we've ever shipped as a company happened in the last three months. The role Key Responsibilities: Build and deploy applications across frontend and backend using Next.js/React, Node.js/NestJS REST APIs, PostgreSQL, MongoDB, and TypeScript Support AWS infrastructure, deployment strategies, and CI/CD pipelines. The team My cofounder and I are both engineers. This is an engineer-driven company, and that shapes everything, how we prioritize, how we debate, what we respect. The people we've hired are a little crazy. Ex-YC founders who wanted to build again. A founder who competed against us, decided we were doing it better, and joined. Engineers who walked away from comfortable jobs because they had something to prove. Whether it was to themselves, to someone else, or sometimes both, I see it every day. These people genuinely inspire myself and Sriharsha ever day, and they run like hell. After our Series A, we took the whole team to Bali. We work hard and we celebrate properly.\ \ Our team hanging out on our office couch (it’s crazy but we hired 10 more people after this photo we took just 2 months ago): uploaded image /media/?key=user_uploads/1403843/1fb7e702-49dd-4584-8cdd-e2f15c5649f2 And our team right after we raised our series A in Bali: uploaded image /media/?key=user_uploads/1403843/6621f88b-70a6-4d51-9d34-d916b368fdf9 And finally actual Ownership You deploy your own code. When something breaks, you fix the thing that caused it. When you see an architectural problem, you own the fix end to end. We don't have a lot of process protecting you from responsibility OR impact. If I had to some what makes a Hypernaut, this would be it in one word. The equity reflects that. We believe in making early employees meaningfully wealthy, and there are real secondary opportunities as we grow. — Atul and Sriharsha

Hyperbound (YC S23, Series A) needs a Engineer with something to prove | Discussion

Senior Security Engineer at Metriport | Y Combinator Metriport (https://www.metriport.com/) is an open-source data intelligence platform that helps healthcare organizations access and exchange patient data in real-time. We integrate with all major US healthcare IT systems and tap into comprehensive medical data for 300+ million individuals. We've found product-market fit with multi-million ARR, 100+ customers (including Strive Health, Circle Medical, and Brightside Health), backing from top VCs, massive recent infusion of capital, and years of runway. We're ready to scale. We're a tight-knit, high-performing team of mostly former founders (including two YC alumni). We're engineering-heavy, operate with minimal bureaucracy and high autonomy, and hire based on competence, not prestige. We push hard—founders work six days a week from our SF office—but give everyone freedom to craft their schedule. We measure output and we're committed to sustainable intensity. About us The following points are an assortment of the most relevant bits that will give you the gist of where we’re at, why we’ll win, and our company culture: We’re a tight-knit, high performing, and passionate team - we work with a consistent intensity and have become a leader in our industry with a fraction of the resources of our competitors. Consistency means we push as hard as humanly possible, while keeping our health and personal lives in check. Meaningful work is what gets us out of bed, and we just wouldn’t be satisfied by building yet another CRM company. By pedigree, we’re a group of underdogs - we don’t hire based on prestige, but on demonstrated competence and perceived potential. We’re engineering heavy, and most of our engineers are former founders (including 2 ex-YC founders). We operate as a relatively flat structure with little red tape, forced structure, or bureaucracy. We just opt to get shit done and foster a collaborative environment with high autonomy - our GitHub commit history and product velocity is a testament to this. The founders set the pace by working 6 days a week in our SF office, but everyone is given full freedom to craft a schedule that’s best for both the team and themselves - team output is measured. About you In a nutshell, we're looking for a security engineer with the following specific qualities: You’re entrepreneurial-minded, with an olympian-level work ethic (nearly our entire engineering team consists of former founders). You are passionate about security and are excited to own security related projects within the company end-to-end.  You are confident in your ability to build scalable systems across the full stack, and people usually come to you for technical guidance. You believe you can solve any problem that comes at you, and don't shy away from diving deep into areas where you may lack domain expertise. You have a strong sense of ownership over your work, and have demonstrated ability to lead others. You know how to move fast - while still maintaining a strong security posture. You care more about the end result and delivering value, rather than what new and frilly tech is being used under the hood for a given feature. When someone scopes out a project with an ETA of 3 weeks, you ask yourself "why can't it be done in 3 days?". You’re a hacker at heart, and have a good sense of what rules should, and shouldn’t, be broken. What you'll be doing After quickly ramping up using our comprehensive onboarding materials to get familiar with our domain, product, and codebase, the goal would be to get you shipping product directly to customers as quickly as possible. Specifically, day to day, this looks like: Evangelizing security across Metriport’s growing team - we will look to you for guidance, and training. Driving full-stack security projects , big and small, end-to-end from ideation to production rollout.These projects could include things like: Implement an enterprise-grade audit logging solution for a new national healthcare network infrastructure stack. Implement fine grained RBAC on the API key access layer, and more robust roles on our UIs. Help us revamp our internal security policies and put tools in place to keep the platform, and employees, secure while still allowing the team to be efficient. Helping the engineering team with PR reviews with a security-focused lens. Work with the Go to Market team to complete customer security assessments and questionnaires. Work with the engineering team to harden security across the development lifecycle - think secret management, access controls, and vulnerability scanning. Managing your own work in Linear. Participating in bi-weekly sprint planning / retro sessions, and quarterly planning sessions. Attending a daily 30 minute remote stand-up at 7:30am PST Mon-Fri (our only regular mandatory meeting). Requirements You have 6+ years experience in security engineering and information security. You’re located in San Francisco or the Bay Area (or willing to relocate). Familiar with HIPAA compliant environments. Experience rolling out and maintaining security frameworks like SOC 2, NIST, HITRUST, FedRAMP, etc. Experience rolling out data protection technologies like SSO, MFA, VPN, FIPS, etc. Experience with organizational secret management. Experience implementing SCA, SAST, DAST in CICD workflows. Experience with Mobile Device Management (MDM). Proficiency in cloud security & networking on AWS - IAM, WAF, KMS, etc. Proficiency in authentication, cryptography, encryption, and security protocols such as: mTLS, RSA, SSL, HMAC, RBAC, etc. Bonus: experience with IHE profiles (ATNA, CT, XUA). Benefits Competitive equity + compensation package 🚀 Salary range: $160,000,00 - $220,000.00 Full family Platinum health insurance, dental, and vision coverage 🦷 401(k) retirement plan + matching 💰 Flexible work from home or in-office 🏢 Healthy lunches are complimentary when working in-office (and breakfast + dinners as needed) 🍏 Quarterly company off-sites with the team ⛷️ MacBook provided by us 💻 Unlimited PTO (we work hard, but trust you to take time you need to be at your best) 🧘‍♂️ Our tech On the frontend, we use React - on the backend, we rely on Node.js and TypeScript for writing core business logic. We deploy a wide range of AWS cloud services (ie ECS, Fargate, Lambda, etc), and manage our infrastructure as code with AWS CDK. Data lives in PostgreSQL, DynamoDB, S3, Snowflake, FHIR servers, and more. We use Oneleet for security and compliance. Metriport provides equal employment opportunities (EEO) to all employees and applicants for employment without regard to race, color, religion, sex, national origin, age, disability, genetics, sexual orientation, gender identity, or gender expression. We are committed to a diverse and inclusive workforce and welcome people from all backgrounds, experiences, perspectives, and abilities.

Metriport (YC S22) is hiring a security engineer to harden healthcare infra | Discussion

Jobs at Zep AI | Y Combinator Jobs at Zep AI

Zep AI (Building the Context Graph, YC W24) Is Hiring Engineers | Discussion

Customer Success Engineer (AI & Data Migration) at Stardex | Y Combinator Stardex is an AI-native ATS and CRM built specifically for executive search firms. We're backed by Y Combinator and are changing how recruiting firms leverage their data and institutional knowledge. Our customers are boutique and mid-market executive search firms who are moving off legacy platforms — and they need someone to make that transition seamless. 🔍 Who are you? You're comfortable writing TypeScript/SQL scripts to transform, clean, and migrate messy data from one system to another You're extremely detail-oriented. Data migration has zero margin for error and you take pride in getting things right. You instinctively reach for AI tools (Claude Code, Cursor, etc.) to automate repetitive work rather than doing it manually. You're always looking for ways to use AI to make processes faster and more efficient. You have some understanding of database optimization — you know why a poorly structured query or schema matters You can communicate clearly with both technical and non-technical people when needed You have a "whatever it takes" attitude. If something needs to go live by Friday, you figure it out. You write clean, maintainable code and document your work so processes get better over time ✨ Bonus points if you... Have worked with CRMs or ATS platforms before (or any system with messy, relational data) Have experience with APIs, data pipelines, or ETL processes Have hands-on experience with database performance tuning, indexing, or query optimization Have done any kind of customer-facing technical work — support, consulting, freelance projects, anything Have worked at an early-stage startup 🎉 Why work with us? You'll be the first person in this role, which means you get to define how Stardex onboards customers from the ground up You'll work directly with our founders (Sanket & Pranav) and have real ownership from day one You'll learn a ton about AI, SaaS, and the recruiting industry We’ll provide whatever you need to be productive Interested? Apply here or email Sanket directly at founders(at)stardex.ai (http://stardex.ai) with a short note on why this role excites you. We are open to recent grads as well for this role.

Stardex (YC S21) Is Hiring | Discussion

GTM Intern at Structured AI | Y Combinator Structured AI | NYC | In-person | Can support OPT and CPT The Role This is a high-ownership GTM internship. You’ll work directly with the founders to build and scale our outbound engine — turning signals into pipeline and experiments into revenue. What You’ll Do *Outbound, every day.\ * You’ll run multi-channel outreach across email, LinkedIn, events, and creative experiments. Volume matters. Relevance matters more. *Find and unlock the right accounts.\ * Research companies, identify decision-makers, and build high-quality, signal-driven lists. Use tools like Clay to turn intent signals into targeted outreach. *Build the revenue infrastructure.\ * Design and maintain our CRM in Attio — pipeline logic, automation, tracking, reporting. Turn founder hustle into structured process. *Engineer the motion.\ * Help us build our repeatable sales engine (ICP → signal → list → outreach → close → learn → repeat). If something works, we systemise it. If it doesn’t, we kill it fast. *Work directly with the founders.\ *Work with our CEO to bring street interview content to life! Work with the Chief of Staff to make the Structured AI Reality TV show!! Bonus Points You genuinely enjoy meeting new people, starting conversations, and building relationships. Experience scraping data and using tools like Attio, Apollo, Clay, Notion, Phantom or Zapier Comfortable making short-form video content Experience running structured growth experiments (A/B tests, messaging tests, landing page tests) Comfortable with SQL, Python, or data analysis tools (even at a scrappy level)

Structured AI (YC F25) Is Hiring | Discussion

Ex Technical Founder (Product Engineer) at Cogram | Y Combinator Location: Remote\ Timezone: within CET ±3 hours About Us Cogram (https://cogram.com) is an AI platform for the architecture, engineering, and construction industry. We automate project admin: RFIs & submittals, email filing, field notes, meeting minutes, reporting. World-leading architecture and engineering firms use Cogram at scale. Backed by YC and Initialized. AEC is a $13T industry that still runs on email chains, spreadsheets, and manual data entry. We’re building the AI platform that replaces all of it. The problems are seriously hard: messy real-world data, deeply entrenched workflows, and users who need to trust the output on job site in difficult environments. We’re a small team competing with companies 100x our size, and winning. The goal is to become the default AI platform for design and construction workflows. We need formers technical founders who want to write code, ship product, and help us get there. Why ex-founders We’re a remote-first team. You talk to customers, decide what to build, build it, ship it, and measure whether it worked. You’re comfortable with thin specs. If something breaks at the edge of your knowledge, you figure it out. If you’ve built and run a company before, this will feel familiar. The pace, the ambiguity, the ownership. The difference is you’re joining a company with traction, paying customers at scale, and a clear technical direction. What we’re looking for You’ve founded or co-founded a tech company and built product yourself. You’re good at talking to users and understanding requirements. You can design, ship, and own features end-to-end. 3+ years building production software. Strong in at least one backend technology and one frontend technology. Habitual power user of AI (Claude Code, Cursor, Codex, or whatever’s next). Strong opinions about AI-augmented engineering. Always finding tools that make you and the team faster. Comfortable in unfamiliar territory: cloud ops, CI pipelines, mobile, a gnarly customer workflow. You can explain technical trade-offs to engineers and non-engineers alike. You know when to cut corners and when to be rigorous. Bonus: experience with shipping LLM-based production software, React Native/Expo, cloud ops (AWS, Azure), Terraform, Kubernetes, AEC industry exposure. Stack Python (FastAPI), Postgres, Redis, React/TypeScript, React Native/Expo, Terraform/Kubernetes on AWS & Azure. Benefits Fully remote, three offsites/year. 38 paid days off (26 personal + 12 German public holidays). Competitive salary + generous equity. Personal development stipend. How to apply One or two paragraphs on your background. One to two lines on what you built and what you took away from it. A URL to a live project, repo, or open-source contribution. Your current agentic-coding setup. No AI slop, please. If your experience doesn’t match every line, apply anyway. We care more about how you think than where you’ve been. Come join us.

Cogram (YC W22) – Hiring former technical founders | Discussion

Founding Engineer (AI Products) at Toma | Y Combinator We're building the AI platform for underserved industries. LLM usage has seen a meteoric rise in the past year, but there is still a significant gap between agentic innovation and its use in the real world. This is especially true for underserved industries like automotive and healthcare, where outdated systems persist due to barriers to entry, legacy software, and high-stakes consequences of hallucinations and failure. Here at Toma (YC W24) (https://www.ycombinator.com/companies/toma), we are bridging this gap by providing a customer-centric platform to deploy and monitor AI agents, even for non-technical users. We recently raised a $17M Series A (http://techcrunch.com/2025/06/05/tomas-ai-voice-agents-have-taken-off-at-car-dealerships-and-attracted-funding-from-a16z) from a16z (https://a16z.com/announcement/investing-in-toma/) and are building the future of human-AI interactions, starting in the automotive industry. Our Team We’re assembling a team of Avengers: engineers, product managers, former founders, athletes, and leaders from Scale AI, Uber, Braze, Microsoft, Amazon, and more. We consider everyone regardless of their backgrounds or identities. Learn more about us here (https://www.toma.com/about). About this Role We’re looking for a Founding Engineer hungry for ownership and eager to drive real impact. In this role, you’ll have the autonomy to build new AI-powered features, influence product direction, and help fuel our growth. You’ll partner closely with product and design to deliver fast, reliable, and magical user experiences, and your work will directly shape the future of our platform. This role is hands-on: you’ll build net-new products, write production code, and see your work go live with real customers quickly. What you will do Take ownership of net new AI features and products (dashboard, real-time voice AI, support tooling) Write production-grade TypeScript across the stack (Next.js, Bun) Help guide teammates through code reviews and technical discussions Collaborate with Product and Design to set priorities and ship quickly Integrate intelligent features into the product experience and drive growth Work closely with customers to translate their feedback into improvements Preferred Qualifications Experience in TypeScript, low-level Node.js (Bun (https://bun.com)), T3 Stack (Next.js, React, Prisma, PostgreSQL, NextAuth, tRPC) 1+ years of experience building and scaling full-stack web applications Desire to own projects end-to-end in a fast-paced environment Passion for learning, craft, and shipping high-quality features quickly Desire to continuously learn Don’t think you meet all the qualifications? Apply anyway. We’d love to hear what excites you about us, and we may have a role that's a good fit for you. Benefits MacBook Pro 16" M4 Max (or newest high-end equivalent) Free daily in-office lunch and dinners Competitive salary with meaningful equity Free health, dental, and vision insurance Weekly team outings and customer visits Unlimited PTO

Toma (YC W24) Is Hiring Founding Engineers | Discussion

Founding Product Designer at Emerge Career | Y Combinator Who We Are: Emerge Career’s mission is to break the cycle of poverty and incarceration. We’re not just building software; we’re creating pathways to real second chances. Through an all-in-one platform deeply embedded within the criminal justice system, we recruit, train, and place justice-impacted individuals into life-changing careers. Our vision is to become the country’s unified workforce development system, replacing disconnected brick-and-mortar job centers with one integrated, tech-powered solution that meets low-income individuals exactly where they are. Today, the federal government spends billions annually on education and training programs, yet only about 70% of participants graduate, just 38.6% secure training-related employment, and average first-year earnings hover around $34,708. By contrast, our seven-person team has already outperformed the job centers in two entire states (Vermont and South Dakota) in just the past year. With an 89% graduation rate and 92% of graduates securing training-related employment, our alumni aren’t just getting jobs—they’re launching new lives with average first-year earnings of $77,352. The results speak for themselves, and we’re just getting started. Before Emerge, our founders Zo (https://www.innovatorsunder35.com/the-list/uzoma-orchingwa/) and Gabe (https://www.forbes.com/profile/gabriel-saruhashi/) co-founded Ameelio, an award-winning tech nonprofit (https://time.com/collection/time100-companies-2023/6285210/ameelio/) that is dismantling the prison communication duopoly. Backed by tech luminaries (https://www.forbes.com/sites/angelauyeung/2020/09/21/the-prison-communications-nonprofit-backed-by-twitters-jack-dorsey-and-former-google-chief-eric-schmidt/) like Reid Hoffman, Vinod Khosla, and Jack Dorsey, and by major criminal-justice philanthropies such as Arnold Ventures and the Mellon Foundation, Ameelio became a recognized leader in the space. Because of this experience both Zo and Gabe understood what it took to create change from within the system. After serving over 1M people impacted by incarceration, they witnessed firsthand the gap in second-chance opportunities and the chronic unemployment plaguing those impacted by the justice system. Emerge Career is committed to solving this issue.  Our students are at the heart of our work. Their journeys have captured national attention on CBS (https://www.cbsnews.com/news/job-program-formerly-incarcerated-us-trucking-industry-shortage-new-york-city/), NBC (https://www.nbcconnecticut.com/news/local/emerge-career-creates-pipeline-from-prison-to-the-workforce/2874785/), and in The Boston Globe (https://www.bostonglobe.com/2025/01/08/business/emerge-career-jail-cdl-jobs-driving-trucks/), and our programs now serve entire states (https://www.wwlp.com/news/local-news/hampden-county/hampden-county-sheriffs-office-celebrates-graduates-of-re-entry-program/) and cities (https://www.nyc.gov/office-of-the-mayor/news/454-25/mayor-adams-mocj-director-logan-celebrate-inaugural-graduates-commercial-driver-s-license). And we’re not doing it alone: our vision has attracted support from Alexis Ohanian (776),  Michael Seibel, Y Combinator, the Opportunity Fund, and public figures like Diana Taurasi, Deandre Ayton, and Marshawn Lynch. All of us believe that, with the right mix of technology and hands-on practice, we can redefine workforce development and deliver true second chances at scale. Why We Do This: Emerge Career was designed to tackle two systemic issues: recidivism, fueled by post-incarceration unemployment and poverty, and labor shortages in key industries. Over 60% of formerly incarcerated people remain unemployed a year after incarceration (https://nytimes.com/2023/07/06/business/economy/jobs-hiring-after-prison.html#:~:text=Yet%20the%20broad%20group%20of,work%20but%20not%20finding%20it.), seeking work but not finding it. The reality is shocking, workforce development programs are severely limited inside prison, with only one-third of incarcerated people ever participating (https://www.prisonpolicy.org/blog/2022/09/02/prison_opportunities/). To worsen, the available prison jobs offer meager wages, often less than $1 per hour (https://www.aclu.org/wp-content/uploads/legal-documents/2022-06-15-captivelaborresearchreport.pdf), and often do not equip individuals with the skills for long-term stable employment.  About the Role We call this a Founding Design Engineer role, even three years in and with multiple contracts under our belt, for two reasons. First, you'll be our very first engineer, joining our co-founder, who's built the entire platform solo to date. Second, our growth is now outpacing our systems, and we can't keep up on maintenance alone. We're at a critical juncture: we can either hire someone to simply care for what exists, or we can bring on a talent who believes that, with the right blend of technology and hands-on practice, we can unify the workforce-development system and deliver second chances at true scale. We hope that can be you. This is not a traditional engineering job. You'll build features in React and TypeScript, but your real job is helping students finish. That means understanding the human problem first: why do people disengage? What makes someone choose to keep going when the payoff is months away? You'll answer those questions through direct conversations, usability research, and watching how people actually use what you build. Then you'll prototype fast, ship real software, and measure whether it worked. Some days that looks like code. Other days it looks like a phone call, a support ticket, or a whiteboard session figuring out how to turn a one-off fix into a system that scales. This role blends engineering, product, design, and program operations. We're looking for someone who believes good design can inspire a person to invest in their own future, and who wants to prove it, week after week, by shipping work that measurably helps students succeed. If you want to be close to users, own outcomes end to end, and build something that actually matters, you'll thrive here. Who You Are: You design by building. You don't hand off mockups and wait. You open Cursor, Claude Code, or whatever gets you closest to a real, testable thing fastest. You might already be shipping code in production — or you're itching to. You believe the fastest path to a great design is putting something real in front of a real user and watching what happens. You are relentlessly scrappy. You prototype in hours, not weeks. You'd rather test an ugly thing that teaches you something than polish a beautiful thing nobody's used yet. You know that at this stage, speed of learning is the only thing that matters. Fidelity comes later. Signal comes first. You refuse to be blocked. When engineering bandwidth isn't there, you don't sit around. You figure it out — a Figma prototype, a coded prototype, a quick hack in the codebase. You treat "waiting for a developer" as a personal failure. You find a way or you make one. You think in outcomes, not outputs. You don't measure your work in screens delivered. You measure it in whether students finished, whether they came back, whether the thing you shipped actually moved a number that matters. You're obsessed with the gap between what you designed and what actually happened. You talk to users constantly. Not in scheduled quarterly research sprints — in real conversations, every week. You build relationships with students. You know their names, their blockers, their moments of doubt. Your best design ideas come from a 10-minute phone call, not a brainstorm. You have strong taste but low ego. You have opinions about what good looks like and you'll fight for them. But when the data says you're wrong, you move on fast. You don't fall in love with your work. You fall in love with the problem. You believe everyone deserves a second chance. You treat everyone with dignity. You know how to meet people exactly where they are — with empathy and compassion — helping create a space where everyone feels seen and valued, regardless of their background. You work hard. You show up early, stay late, and do what needs to get done — no ego, no excuses. This isn't a 9-to-5. The team puts in 10+ hour days because we care about the mission and each other. If that sounds miserable, this isn't for you. If it sounds exciting, you'll fit right in. What you will be doing Talking to students — a lot. Your week starts and ends with users. You'll build real relationships with students, not just run usability sessions. You'll understand why someone almost quit, what message made them log back in, what screen confused them at 11pm. These conversations are your primary design tool. Prototyping at the speed of conversation. You hear a problem on a call Tuesday. By Wednesday you have something testable — a coded prototype, a functional hack, a Figma flow wired to real data. By Thursday a student is using it. By Friday you know if it worked. That's the cycle. Repeat. Shipping real product, not just designs. You'll work in our React and TypeScript codebase — or use AI tools like Cursor and Claude Code to get there. The goal isn't to become a full-time engineer. The goal is to never let "it hasn't been built yet" slow down learning. Some of what you build will go straight to production. Some will be throwaway prototypes. You'll know the difference. Designing the moments that keep students going. The hardest design problem here isn't layout or typography. It's commitment. Students are betting months of effort on a future they have to imagine. You'll study where they disengage, what triggers doubt, and what reignites momentum. Then you'll design the moments — an interface, a message, a milestone — that help someone choose to keep going. How do you make a better life in three months feel worth the sacrifice today? You'll own that problem. Measuring what matters. Polished decks don't matter here. You'll define success metrics for what you ship, track whether completion rates moved, whether more students hit the next milestone, whether the intervention you designed actually intervened. You'll close the loop between design and outcome every time. Working across the entire stack of the student experience. Some days that looks like interface design. Other days it looks like rethinking a Customer.io (http://Customer.io) campaign, redesigning an onboarding flow, or sitting with the ops team to understand why students in one facility disengage faster than another. You go where the problem is. Documenting your work clearly. Our work spans months and involves multiple teams. You'll create visibility when a change impacts operations and help others understand how features affect training and service delivery. Precision matters. Start Date: ASAP

Emerge Career (YC S22) Is Hiring a Founding Product Designer | Discussion

Research Engineer at Clearspace at Clearspace | Y Combinator About Clearspace Clearspace is building the intentionality layer of the internet. Our mission is to build technology as effective at protecting human attention as social media is at exploiting it (infinite scrolling, short-form feeds, manipulative notifications, etc). Our category defining mobile app has been featured on Huberman Lab, New York Times Wirecutter, NPR Marketplace, Forbes, TBPN. People that want a better relationship with their devices have nowhere to turn except for willpower. We are building an agent that achieves this on all devices by processing and filtering network traffic based on natural language rules. About The Role We are looking for an ML-focused engineer that will be responsible for training and improving a model for classifying network traffic. You are great for this role if you are not only excited about the latest in AI and ML but are also a problem-solver in the data domain. You don’t just think about the model but “how can we get more data volume”; “how can we featurize the data intelligently”; “what are our data needs based on our task and desired model size”, and like building backwards from inference requirements. Responsibilities Own implementation of production model that classifies network traffic Create tooling for data gathering Work directly with the founders to define research direction Move fast and autonomously Qualifications Bachelor or higher Computer Science or related engineering degree Experience in training production-grade sequential models, particularly on time-series data Willing to work onsite in San Francisco Nice to Have Specific experience with network traffic Graduate research experience

Clearspace (YC W23) Is Hiring an Applied Researcher (ML) | Discussion

AI Agent Engineer at CollectWise | Y Combinator About Us CollectWise is a fast growing and well funded Y Combinator-backed startup. We’re using generative AI to automate debt collection, a $35B market in the US alone. Our AI agents are already outperforming human collectors by 2X, and we’re doing so at a fraction of the cost. With a team of three, we scaled to a $1 million annualized run rate in just a few months, and we are now hiring an AI Agent Engineer to help us reach $10 million within the next year. Role We are hiring an AI Agent Engineer to design, optimize, and productionize the prompting and conversation logic behind our voice AI agents, while also supporting the technical systems that power customer deployments. You’ll work at the intersection of AI quality, product outcomes, and engineering execution—owning prompt development, testing, and iteration loops that improve real-world performance (e.g., identity verification, payment conversion, dispute handling, containment rates), while collaborating closely with the founder and customers to ship improvements quickly. This role is ideal if you’re highly analytical and business minded, love experimentation and measurement, and can also jump into back-end code and integrations when needed. Responsibilities Own the end-to-end prompting strategy for CollectWise voice agents, including conversation flows, tone, compliance-safe phrasing, and edge-case handling. Build and maintain a testing and evaluation framework for voice agent performance (A/B tests, regression tests, conversation QA, KPI reporting). Iterate quickly based on performance data and customer feedback to improve outcomes like containment, conversion, liquidation rates, and customer satisfaction. Configure and productionize AI agents for each client (prompts, workflows, data transfers), ensuring reliable behavior in production. Implement prompt-related tooling and infrastructure (versioning, rollout strategies, safety checks, monitoring). Contribute to client implementations as needed by building or supporting integrations and back-end systems. Desired Qualifications 2+ years of experience in voice AI and/or prompt engineering (LLM prompting, agent design, conversational systems, speech workflows, etc.). Highly analytical and business minded—comfortable tying work directly to measurable outcomes and ROI. Strong technical background with experience in modern back-end frameworks (e.g., Node.js) and production systems. Experience with AWS and SQL. Experience building products in a production environment (early-stage startup experience, your own startup, or a meaningful end-to-end project). Excellent communication skills and strong work ethic. Experience with GPT-5 or other LLMs. Compensation Salary range: $150,000 to $200,000, based on relevant experience and qualifications. 0.25% to 1% equity compensation

CollectWise (YC F24) Is Hiring | Discussion

Forward Deployed Engineer at Goldbridge | Y Combinator Goldbridge is building the financial operating system for the largest asset class in the world – real estate. More than $1T in rent flows through landlord bank accounts annually, with roughly a quarter locked in idle reserves and security deposits – and billions more leaking from unnecessary property expenses. And with $2.5T in real estate loans about to mature in 2027/28, property owners are desperate to boost their income ASAP. Goldbridge solves this problem by creating the first AI-powered banking platform for real estate owners. We are backed by Y Combinator and other world-class investors, and our CEO is a 2x YC founder, former White House advisor, and 100-unit real estate owner/operator who understands this industry deeply. See full job description here: https://www.goldbridgebanking.com/careers/forward-deployed-engineer

Insane Growth Goldbridge (YC F25) Is Hiring a Forward Deployed Engineer | Discussion

Lead Software Engineer Infra at Reflex | Y Combinator Serve as the lead of our infrastructure team Ownership of our entire infra stack Analyze, design, develop, maintain, and improve observability & monitoring stack Push the boundaries of what is possible. Skills: Kubernetes, Helm, Terraform, Python, Reflex

Reflex (YC W23) Senior Software Engineer Infra | Discussion

Founding Engineer at Questom | Y Combinator We’re looking for a Founding Engineer to help build the core systems that power Questom. This is not a framework-specialist role. It’s not about perfect abstractions on day one. It is about systems thinking, ownership, and the ability to stitch together complex infrastructure into something that works — fast. You’ll be one of a very small group shaping not just the product, but how the company builds. What You’ll Do Build systems that connect everything Design and build high-performance systems that connect: Communication platforms (voice, SMS, email, chat) Agentic workflows External tools like CRMs and internal APIs Stitch together APIs, workflows, and agents into cohesive systems that actually run in production Think deeply about how these systems scale across many customers with different data sources and configurations Build agentic workflows Create workflows where agents: Handle live conversations Pull context from systems like Salesforce Log outcomes in tools like HubSpot Take real actions on behalf of users Focus on giving agents the right information at the right time and designing systems that make this repeatable across customers Turn ambiguity into working software Start from half-baked ideas, rough customer conversations, or incomplete requirements Ship a 90% working solution quickly Iterate toward something more general, scalable, and high quality Own what you build Take end-to-end ownership: design → build → ship → improve Break things thoughtfully — and fix them yourself Make judgment calls without needing constant guidance What Success Looks Like In the first 30 days Sit in a few customer conversations Identify a real pain point Propose a product or feature to solve it Build and ship an end-to-end solution that delivers real value In the first 90 days Take learnings from multiple customer builds Start shaping more general-purpose systems Help lay the foundation for a platform that can scale to many customers — and eventually very large companies How We Build We use modern tools aggressively and expect you to learn quickly: Agentic workflow frameworks Communication infrastructure AI agent SDKs We rely heavily on coding agents and automation — curiosity and systems understanding matter more than syntax mastery We build fast, then make it better We’re opinionated, iterative, and comfortable changing direction when a simpler solution delivers customer value What Matters (and What Doesn’t) What matters a lot Systems thinking Ownership Comfort with ambiguity Curiosity and fast learning Product taste (what’s worth building vs not) Respect for how other people think What doesn’t matter much Deep expertise in any single framework or language Pixel-perfect UI work Writing perfect SQL by hand Knowing our exact stack on day one If you understand how modern web systems, APIs, workflows, and agents fit together — and you’re excited to learn the rest — you’re in great shape. How We Work Fast, opinionated, iterative Disagreements are encouraged and happen openly We build first, think later — but we do think You won’t be micromanaged You will be trusted with real responsibility early Who You Are You likely describe yourself as: Extremely curious Highly independent Comfortable operating without a map Someone who enjoys connecting dots across systems High-EQ and collaborative You want to be deeply involved — not just shipping tickets, but helping build a company. Who Should Not Apply If you need clear specs and guardrails to do your best work If you prefer working in isolation If you’re uncomfortable with constant ambiguity If you don’t enjoy discussing ideas, systems, and tradeoffs with a small team If you want a narrow role instead of broad ownership If reading this makes you feel slightly intimidated but very excited, that’s intentional — and probably a good sign.

Questom (YC F25) is hiring an engineer | Discussion

Staff Engineer / Tech Lead at Kyber | Y Combinator At Kyber, we're building the next-generation document platform for enterprises. Today, our AI-native solution transforms regulatory document workflows, enabling insurance claims organizations to consolidate 80% of their templates, spend 65% less time drafting, and compress overall communication cycle times by 5x. Our vision is for every enterprise to seamlessly leverage AI templates to generate every document. Over the past 18 months, we’ve: >30x’d revenue and are profitable. Landed multiple six and seven figure, multi-year contracts with leading insurance enterprises. Launched strategic partnerships with industry leading software partners like Guidewire, Snapsheet, and PCMS. Kyber is backed by top Silicon Valley VCs, including Y Combinator and Fellows Fund. We're seeking a Staff Engineer with a clear line of sight to CTO. This role is ideal for someone who is already operating as a 10x engineer, thrives in early stage environments, and is excited to design and scale mission-critical AI systems from first principles. Responsibilities: Be the Technical Owner of the Product Own end-to-end technical decisions across backend, frontend, data, infra. Ship features personally while keeping the team unblocked. Prioritize an Aggressive Product Roadmap Lead sprint/weekly planning and keep priorities tight Protect focus: decisively manage tradeoffs, push back when needed Unlock Leverage to Boost Engineering Capacity Scale adoption of Agentic AI coding tools (Cursor, Claude Code, Greptile) into large scale engineering and product workflows to accelerate time to market. Establish reusable patterns and interfaces so engineers and agents aren’t reinventing everything. Champion Reliability, Security, and Customer Trust Own uptime, performance, and incident response. Implement monitoring/alerts + fast debugging workflows. Mentor & Raise the Engineering Bar Set expectations for quality and ownership. Help recruit and evaluate future hires. What We’re Looking For in You: 10x Engineer with a love of building Your raw coding ability should be unmatched and only deeply amplified by AI. You love to build and relish seeing customers delighted by your work. Ship first, optimize and harden later You get something out as quickly as possible, prove it was the right thing to build, and then optimize and harden it. System Design Mastery You've architected large scale data-driven applications and have a full E2E understanding of what tradeoffs to make when. Systems-first thinking Not just in architecture, but also for how an AI-native engineering team will operate as we continue to grow. Accountability You're prepared and have been in roles before where you've had to hold other engineers accountable for their deliverables. Security and Compliance You've dealt with enterprise software compliance requirements (SOC 2, HIPAA, ISO, etc) and are comfortable incorporating those requirements in tandem with product build out. Our Values Possible Until Proven Otherwise Challenge assumptions with evidence. If it’s impossible, show us why. LOVE Your Customer Put customers at the heart of everything. Earn trust, deliver value, grow together. Take Pride In Your Craft Creating something from nothing is a privilege—embrace the process and perfect the details. Live Up To Your Expectations Set your standards high and let’s exceed them together—because no one should expect more of you than yourself. Have Fun & Nurture Those Around You The joy of building is amplified when shared. Remember to support, uplift, and celebrate each other as we grow. Benefits Competitive salary Generous stock package 100% employer-covered medical, dental, and vision insurance Why Kyber? Join us in building and scaling a game-changing enterprise product powered by state-of-the-art AI. At Kyber, your contributions will directly impact how businesses handle some of their most critical workflows and customer interactions. If you’re obsessed with building, AI, and transforming enterprise workflows, we’d love to hear from you! How To Stand Out We want to hear from extraordinary individuals who are ready to shape the future of enterprise documents. To stand out, ask someone you’ve worked with to send your resume or LinkedIn profile, along with a brief 2-3 sentence endorsement, directly to arvind [at] askkyber.com (http://askkyber.com). Referrals matter. They help us understand the impact you’ve already had and the kind of teammate you’ll be. A strong referee can elevate your application, so choose someone who knows your skills and character well. Apply today and help us bring enterprise documents into the AI-native age.

Kyber (YC W23) Is Hiring a Staff Engineer | Discussion

Design Engineer (Senior / Staff / Principal) at Gym Class - by IRL Studios | Y Combinator Role Summary Gym Class is a top rated social game on Meta Quest - millions of downloads, 79,000+ reviews, and a 4.9-star rating. We’re hiring our founding Design Engineer to drive the development of our upcoming mobile web app (embedded in native), and web surfaces inside our flagship, social VR experience. You’ll own key web surfaces end-to-end - crafting in Figma, then building responsive, production-grade UI with React/Node/CSS - and you’ll set a clear quality bar for speed, polish, and accessibility. If you love living at the intersection of consumer design and front-end engineering, owning a high-compact roadmap for a startup, and shipping to a highly engaged social audience - this role is for you. WHAT YOU'LL DO Ship end-to-end features: Turn rough ideas and user feedback into polished flows - wireframes → interactive Figma → production React/Node. Drive the web roadmap: Propose, scope, and deliver improvements across mobile and VR platforms, social flows, profiles, discovery, chat and AI, spectating - balancing velocity and quality. Build a design system: Create reusable components and interaction patterns; advocate consistency across mobile web and in-VR web surfaces. Hit performance budgets: Optimize for fast loads and 60fps interactions on mobile and VR. Tighten quality loops: Instrument analytics, run lightweight usability tests, and iterate quickly based on real player behavior. QUALIFICATIONS - you are… A designer-who-codes (or an engineer with taste): 3–6+ years building consumer web products. Strong Figma skills and a shipped portfolio of design + code work. Front-end strong: Expert in React, TypeScript/JavaScript, HTML, CSS (layouts, animations, responsive design). You care about spacing, typography, and micro-interactions. Performance-minded: Comfortable profiling, code-splitting, image/asset strategy, caching/CDN, and keeping bundles lean. Pragmatic & fast: You scope well, communicate clearly, and ship iteratively without sacrificing polish. Entrepreneurial: High-ownership, comfortable with ambiguity. Ex-founders and builders who like to run with problems do great here. Pay and Benefits Salary ranges may be inclusive of several career levels and will be narrowed during the interview process based on a number of factors, including the candidate’s experience, qualifications, and location. Additional benefits for this role include: equity; and medical, dental, and vision benefits; and 401k retirement plan with matching.

First Design Engineer Hire – Build Games at Gym Class (YC W22) | Discussion

Senior Security Engineer at Metriport | Y Combinator Metriport (https://www.metriport.com/) is an open-source data intelligence platform that helps healthcare organizations access and exchange patient data in real-time. We integrate with all major US healthcare IT systems and tap into comprehensive medical data for 300+ million individuals. We've found product-market fit with multi-million ARR, 100+ customers (including Strive Health, Circle Medical, and Brightside Health), backing from top VCs, and years of runway. We're ready to scale. We're a tight-knit, high-performing team of mostly former founders (including two YC alumni). We're engineering-heavy, operate with minimal bureaucracy and high autonomy, and hire based on competence, not prestige. We push hard—founders work six days a week from our SF office—but give everyone freedom to craft their schedule. We measure output and we're committed to sustainable intensity. About us The following points are an assortment of the most relevant bits that will give you the gist of where we’re at, why we’ll win, and our company culture: Well funded with a massive recent infusion of capital, found PMF, multi-million ARR, 80+ customers (including Strive Health (https://strivehealth.com/), Circle Medical (https://www.circlemedical.com/), and Brightside Health (https://www.brightside.com/)), funded by top VCs and angels, have years of runway - and we’re just getting started. We’re a tight-knit, high performing, and passionate team - we work with a consistent intensity and have become a leader in our industry with a fraction of the resources of our competitors. Consistency means we push as hard as humanly possible, while keeping our health and personal lives in check. Meaningful work is what gets us out of bed, and we just wouldn’t be satisfied by building yet another CRM company. By pedigree, we’re a group of underdogs - we don’t hire based on prestige, but on demonstrated competence and perceived potential. We’re engineering heavy, and most of our engineers are former founders (including 2 ex-YC founders). We operate as a relatively flat structure with little red tape, forced structure, or bureaucracy. We just opt to get shit done and foster a collaborative environment with high autonomy - our GitHub commit history and product velocity is a testament to this. The founders set the pace by working 6 days a week in our SF office, but everyone is given full freedom to craft a schedule that’s best for both the team and themselves - team output is measured. \ About you In a nutshell, we're looking for a security engineer with the following specific qualities: You’re entrepreneurial-minded, with an olympian-level work ethic (nearly our entire engineering team consists of former founders). You are passionate about security and are excited to own security related projects within the company end-to-end.  You are confident in your ability to build scalable systems across the full stack, and people usually come to you for technical guidance. You believe you can solve any problem that comes at you, and don't shy away from diving deep into areas where you may lack domain expertise. You have a strong sense of ownership over your work, and have demonstrated ability to lead others. You know how to move fast - while still maintaining a strong security posture. You care more about the end result and delivering value, rather than what new and frilly tech is being used under the hood for a given feature. When someone scopes out a project with an ETA of 3 weeks, you ask yourself "why can't it be done in 3 days?". You’re a hacker at heart, and have a good sense of what rules should, and shouldn’t, be broken. What you'll be doing After quickly ramping up using our comprehensive onboarding materials to get familiar with our domain, product, and codebase, the goal would be to get you shipping product directly to customers as quickly as possible. Specifically, day to day, this looks like: Evangelizing security across Metriport’s growing team - we will look to you for guidance, and training. Driving full-stack security projects , big and small, end-to-end from ideation to production rollout.These projects could include things like: Implement an enterprise-grade audit logging solution for a new national healthcare network infrastructure stack. Implement fine grained RBAC on the API key access layer, and more robust roles on our UIs. Help us revamp our internal security policies and put tools in place to keep the platform, and employees, secure while still allowing the team to be efficient. Helping the engineering team with PR reviews with a security-focused lens. Work with the Go to Market team to complete customer security assessments and questionnaires. Work with the engineering team to harden security across the development lifecycle - think secret management, access controls, and vulnerability scanning. Managing your own work in Linear. Participating in bi-weekly sprint planning / retro sessions, and quarterly planning sessions. Attending a daily 30 minute remote stand-up at 7:30am PST Mon-Fri (our only regular mandatory meeting). \ Requirements You have 6+ years experience in security engineering and information security. You’re located in San Francisco or the Bay Area (or willing to relocate). Familiar with HIPAA compliant environments. Experience rolling out and maintaining security frameworks like SOC 2, NIST, HITRUST, FedRAMP, etc. Experience rolling out data protection technologies like SSO, MFA, VPN, FIPS, etc. Experience with organizational secret management. Experience implementing SCA, SAST, DAST in CICD workflows. Experience with Mobile Device Management (MDM). Proficiency in cloud security & networking on AWS - IAM, WAF, KMS, etc. Proficiency in authentication, cryptography, encryption, and security protocols such as: mTLS, RSA, SSL, HMAC, RBAC, etc. Bonus: experience with IHE profiles (ATNA, CT, XUA). Benefits Competitive equity + compensation package 🚀 Salary range: $160,000,00 - $220,000.00 Full family Platinum health insurance, dental, and vision coverage 🦷 401(k) retirement plan + matching 💰 Flexible work from home or in-office 🏢 Healthy lunches are complimentary when working in-office (and breakfast + dinners as needed) 🍏 Quarterly company off-sites with the team ⛷️ MacBook provided by us 💻 Unlimited PTO (we work hard, but trust you to take time you need to be at your best) 🧘‍♂️ \ Our tech On the frontend, we use React - on the backend, we rely on Node.js and TypeScript for writing core business logic. We deploy a wide range of AWS cloud services (ie ECS, Fargate, Lambda, etc), and manage our infrastructure as code with AWS CDK. Data lives in PostgreSQL, DynamoDB, S3, Snowflake, FHIR servers, and more. We use Oneleet for security and compliance. Metriport provides equal employment opportunities (EEO) to all employees and applicants for employment without regard to race, color, religion, sex, national origin, age, disability, genetics, sexual orientation, gender identity, or gender expression. We are committed to a diverse and inclusive workforce and welcome people from all backgrounds, experiences, perspectives, and abilities.

Metriport (YC S22) is hiring a security eng to harden healthcare data infra | Discussion

AI/ML Engineer at Noora Health | Y Combinator WHO WE ARE Noora Health India Private Limited is a key partner in Noora Health’s (http://www.noorahealth.org/) mission is to improve outcomes and strengthen health systems by equipping family caregivers with the skills they need to care for their loved ones. They develop content, technology platforms, new products, and strengthen other operational functions that support the scale and impact of Noora Health’s programs. Founded in 2014, Noora Health turns hospital hallways and waiting rooms into classrooms by tapping into the most compassionate resources available for the patient’s care: their own family.  With support from governments and partners in India, Bangladesh, Indonesia, and Nepal, Noora Health has trained more than 43 million caregivers and patients across 12,800+ facilities using their flagship caregiver education and training curriculum, the Care Companion Program (CCP).  In a cohort of patients, the CCP reduced post-surgical cardiac complications by 71%, maternal complications by 12%, newborn complications by 16%, and newborn mortality by 18%. Noora Health is an Audacious Project Grantee (https://blog.ted.com/introducing-the-audacious-projects-new-cohort/) and received the Skoll Foundation Award for Social Innovation (https://skoll.org/2022/04/04/skoll-foundation-announces-winners-of-the-2022-skoll-award-for-social-innovation/). To learn more, watch our TED Talk (https://www.ted.com/talks/edith_elliott_and_shahed_alam_the_most_powerful_untapped_resource_in_health_care), Skoll feature (https://youtu.be/e7qvtubZ7XM), or read about our partnership (https://www.who.int/news/item/29-07-2025-who-and-noora-health-begin-collaboration-to-strengthen-support-for-family-caregivers) with the World Health Organization. WHAT YOU WILL DO Build AI systems end-to-end: curate data, preprocess, prototype, deploy, and monitor performance in production. Define success metrics for each model or pipeline and iterate to improve accuracy, relevance, and efficiency. Integrate AI features into existing product infrastructure with attention to performance and scalability. Provide guidance on best practices and encourage the adoption of cutting-edge AI/ML techniques. Document research findings and share knowledge across teams. Collaborate with engineers, product managers, designers, and clinical experts to identify where AI can improve user experience and care delivery. WHO WE ARE LOOKING FOR  4+ years of experience in AI/Machine Learning with Bachelor’s or Master’s in Computer Science, AI, Machine Learning, or related field, or equivalent demonstrated experience through projects. Empirical approach to problem-solving: you analyze data, models, and errors methodically to drive measurable improvements. Proficient in Python and solid machine learning fundamentals. Built and shipped at least one deep learning project (computer vision, NLP, or RL) from dataset curation through model/pipeline building, evaluation, deployment and continuous improvements through iterations. Experience with cloud platforms (GCP, AWS, or Azure) and databases (SQL, NoSQL). Clear communicator who balances theoretical knowledge with practical constraints. You are a builder at heart, obsess about the user problem and solutions you work on, and are innately curious to learn more and get better at what you do.  WHAT WE VALUE We value diversity, equity, and inclusion, and we understand the value of developing a team with different perspectives, educational backgrounds, and life experiences. We prioritize diversity within our team, and we welcome candidates from all gender identities, castes, religious practices, sexual orientations, and abilities — among many others. We encourage people from all backgrounds to apply. HOW TO APPLY Please submit your application using this link. (https://noorahealth.bamboohr.com/careers/105?source=aWQ9MzQ%3D)

Noora Health (YC W14) Is Hiring AI/ML Engineer | Discussion

Growth Lead at TrueVault | Y Combinator At TrueVault, we build software that solves real problems for real customers, and we approach growth with the same discipline and curiosity we bring to product. We’re looking for a Growth Lead who wants to build from first principles: someone who enjoys experimenting, uncovering real signal, and turning insight into momentum. This is a hands-on role for a builder. Someone who doesn’t want to inherit a playbook, but help write the first version of one. About TrueVault Privacy is one of the most fundamental rights we have. At TrueVault, we believe that when businesses are given practical, well-designed tools, respecting consumer privacy becomes the obvious choice. That belief drives everything we build. We create software that helps brands comply with complex privacy laws without drowning in legal costs or operational overhead. No armies of lawyers. No brittle workflows. Just software that works. TrueVault is a Y Combinator–backed company based in San Francisco. We’re obsessive about product quality, thoughtful about the problems we choose to solve, and relentless about making our customers successful. Why Join TrueVault As Growth Lead, your work will have immediate, visible impact on the company’s trajectory. This is not a role focused on incremental optimization. You will help establish how growth works at TrueVault. The role reports directly to the CEO, ensuring you have the support, context, and access needed to move quickly and decisively. The experiments you run and the signals you uncover will directly influence how we reach customers, how we invest our time, and where the company goes next. If you thrive on identifying what drives growth in early-stage startups, where the product is strong but the growth playbook is still being written, this is the role. About the Role We’re looking for someone who thrives on experimentation. Someone who sees growth as a series of questions to answer, signals to uncover, and systems to build. As TrueVault’s first Growth Lead, your initial mission is to identify viable acquisition channels that can reliably and repeatedly drive growth. You’ll explore a wide range of channels including paid, outbound, partnerships, co-marketing, SEO, and more, running structured experiments to determine what truly works. Your early focus will be on Acquisition, but the role expands over time. As viable channels emerge and stabilize, you’ll help shape growth across the broader AAARRR framework, influencing awareness, activation, revenue, retention, and referral. Experimentation is central to this role. Being genuinely data-driven is critical. You'll be expected to form clear hypotheses, measure outcomes rigorously, and let evidence guide decisions. Key responsibilities Design and run rapid, hands-on experiments across multiple acquisition channels to identify what actually drives growth. Own and execute sales motions end to end, from design through day-to-day operation. Be accountable for growth and sales metrics by defining them, ensuring accurate measurement, and evaluating performance against clear goals. What we are looking for Meaningful experience and repeatable success: at least 5 years doing hands-on acquisition work similar to this role, across multiple channels, including early-stage B2B SaaS. You’ve personally identified, built, and scaled more than one acquisition channel (not just a single channel like paid or content), found signal in messy data, and repeated that success across different companies. A builder mentality: you’re comfortable in ambiguity, prefer launching experiments to debating ideas, and know how to create order from chaos. A relentless experimenter: eager to frame hypotheses, test them, learn quickly, and iterate. Channel versatility and creativity: you’re comfortable exploring outbound, paid, partnerships, co-marketing, organic, technical funnels, or anything with real potential. Ownership and accountability: you treat growth as an end-to-end responsibility and take outcomes personally, whether they’re wins or failures. Metrics for Success We believe in setting clear, concrete expectations. Success in this role will be measured by outcomes such as: Design, launch, and run 6 to 8 structured acquisition experiments per quarter, each with clear hypotheses and measurable outcomes. Identify, build, and execute 2 to 4 viable acquisition channels within the first 6 months that consistently generate qualified leads. Increase qualified pipeline contribution from growth-led channels by 15 to 25 percent quarter over quarter. Career Growth Path This role starts with hands-on ownership and grows with impact. Initially, you'll focus on discovery and execution: running experiments, identifying viable channels, and building repeatable growth motions. As those motions scale, your scope expands. Strong performance typically leads to broader ownership across the funnel, strategic influence, and eventually leadership of the growth function—including hiring and managing a team. The trajectory depends on the impact you create and where your strengths emerge. Where will you work This is a fully remote role, but you must be based in the United States. Salary & Compensation This role is leveled as a Principal Individual Contributor (Pave level: P6/Carta level: L7) Base salary: $165,000 - $185,000 Target bonus: 15% Equity: ~0.75% - ~0.5% fully diluted OTE: $189,750 - $212,750 Final offers may vary slightly based on experience. What we offer 100 percent covered health, dental, and vision insurance for you; 70 percent for dependents. You can preview our medical benefits here (https://app.rippling.com/benefits/preview/wrlzdbe50vzmbvdo). Unlimited PTO (and the encouragement to use it). A primarily remote team. We have team members in NY, San Francisco, and everywhere in between. 3 percent 401(k) contribution FSA/HSA Equity How to Apply To apply, please submit your application through this form (https://webforms.pipedrive.com/f/1r22fAIm6NUW9fnu8jALqv9pZuLhlALpf3u9LQ7SlufYyieuJwFmDha70N5QvhEWv). Applications submitted outside of this form will not be reviewed. Privacy Disclosure We take applicant privacy seriously. Please review our Job Applicant Privacy Policy (https://privacy.truevault.com/job-applicant) to understand how we collect and process your personal information in accordance with applicable laws, including the CCPA.

TrueVault (YC W14) is hiring a Growth Lead to test different growth channels | Discussion

AI agent orchestration at AnswerThis | Y Combinator We crossed $1M ARR in 8 months. 200,000+ researchers at Stanford, MIT, and Amazon use us to do literature reviews 10x faster.\ \ Now we're building something bigger: the system of record for scientists where they can find papers, analyze experiments, and write their drafts while collaborating with other scientists as well as our AI agents. \ \ You should apply if you:\ \ → Ship fast and learn faster \ → Know the agentic AI stack cold (vector DBs, graph RAG, agent memory) \ → Have built full-stack products that scaled past 1M users \ → Actually care about accelerating scientific discovery\ \ Bonus: You've published research yourself. \ \ Don't apply if you:\ \ → Can't be in SF, in person \ → Haven't used the product yet \ → Don't want to talk to customers \ \ $120K-$200K + equity. We're a small team backed by YC. \ \ Reach out on careers [at] answerthis.io (http://answerthis.io)\ \ Tell us what you hate about AnswerThis, what you love, and one project you're proud of alongside your resume.\ \ Science moves too slowly. Help us fix that.

AnswerThis (YC F25) Is Hiring | Discussion