Founding Software Engineer
Founding Software Engineer (AI Evaluation Infrastructure)
Location: San Francisco, CA (FiDi)
Employment Type: Full-time
Work Arrangement: On-site (6 days a week in office)
About the Role
Our client, is a high-growth AI startup that is building the most complex infrastructure for frontier data creation and evaluation for LLMs and AI Agents. They work with all five of the leading AI labs and top-tier YC companies, reflecting their sharp growth rate and talent density. The company is backed by $3 million in funding and features a founding team from rigorous environments like Citadel Securities, Google, and Meta.
They are seeking a Founding Software Engineer for a high-impact, non-narrow role with end-to-end ownership. You will operate across the full stack and infrastructure, contributing directly to systems that push the frontier of AI evaluation.