Product Engineer, Y Combinator

• Are a strong full-stack, product-minded engineer who owns products, not just code — no PMs, no designers, you make the product and UX calls
• Live in an AI-native dev stack and have built AI-enabled products, agents, or prototypes
• Care about developer experience and the craft of a tool people love
• Like turning hard problems into clean, usable systems and shipping fast
• Are low-ego, comfortable with ambiguity, and get along with everyone in our ~100-person company
• Former founders and early-stage startup engineers
• Prolific open-source contributors or maintainers
• Product engineers who've built and shipped complete products end-to-end
• Engineers who've owned both backend systems and frontend/user experience
• Experience shipping full-stack or systems software end-to-end
• Strong system design and independent decision-making
• Strong product sense and comfort designing user experiences
• Clear communication and the ability to work directly with non-technical stakeholders
• High judgment and integrity
• We care more about your ability to build and ship complete products than any specific stack

Desirable

• This is a rare seat
• You won't be maintaining someone else's roadmap
• You'll be taking new products from zero to one, owning them end-to-end, and putting them in front of real users fast
• Take new products from 0→1 — design, build, and ship full-stack systems and developer tools end-to-end
• Build AI-native software: agent orchestration, semantic search, embeddings, knowledge graphs, LLM workflows
• Own developer and user experience completely — 30-second installs, time-to-first-value measured in minutes, interfaces people actually want to use
• Ship some work in the open and engage a real community; ship other work as commercial product. Pick the right call for each
• Use your own fully AI-enabled dev stack and make pragmatic tradeoffs in a fast-moving environment