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Product Engineer, New Products

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Hybrid (San Francisco Bay Area)$185k - $485kFull-timePosted 4mo ago

About the role

Product engineer role at Y Combinator focusing on building AI-native, end-to-end products and developer tools from zero to one, with ownership of full stack and user experience.

Responsibilities

  • 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

Qualifications

  • 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

Skills

Required:Full-stack or systems softwareSystem designProduct senseCommunication

Benefits

  • Medical, dental, vision, 401(k) + 4% match, parental leave, flexible PTO, and more
Last updated Oct 21, 2026. Interested? Apply on the company site.
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About Y Combinator

Not your average fixed point combinator.

Make something people want.

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