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Product Engineer

$180k - $280k

S23 Recruitment

S23 - AI

Product Engineer

Location: San Francisco, CA (On-site)

Salary: $180,000-$280,000 + Equity

About the Role

An applied AI research lab is hiring a Product Engineer to help turn its research into real, usable software. The company builds the infrastructure that trains specialised AI agents, converting real-world data into simulated training environments, and counts some of the biggest names in AI among its customers.

This is a generalist role at a very early stage company. You'll be working across the full stack, building 0 to 1 products directly with customers, with very little structure around you. If you like a clear spec and a defined roadmap, this probably isn't the one.

Key Responsibilities
  • Build 0 to 1 products from scratch, turning ambiguous customer and research workflows into usable software
  • Work directly with customers to understand what they actually need and translate that into shipped product
  • Own full-stack product work, covering frontend, backend, data models and internal tooling
  • Build interfaces for inspecting traces, validating environments and reviewing model behaviour
What We're Looking For
  • 1-5 years of full-stack product engineering experience with TypeScript, React and Python
  • Startup background, ideally as a founding engineer, founder, or early hire at a seed or Series A company
  • A track record of shipping 0 to 1 products with real users in messy, undefined environments
  • Comfortable talking directly to customers and turning what they say into product decisions
  • Based in San Francisco and able to work on-site five days a week
Why Join?
  • Work on infrastructure used by some of the biggest names in AI
  • True 0 to 1 ownership at a very early stage, high trust environment
  • Strong comp with competitive equity
  • Small team, direct access to the founder, and real say in what gets built next
Vacancy posted 3 days ago
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