Senior Product Engineer

Fonzi is an AI recruiting company. Every week, hiring managers at 100+ pre-vetted startups in NYC and San Francisco review a curated group of engineers. We work with early stage companies backed by investors like A16z, Sequoia Capital, General Catalyst, Y Combinator and more. The engineers who do best on Fonzi: Have built AI-powered products end-to-end, not just prototypes, but systems handling real usersCan talk fluently about retrieval, memory, agent frameworks, context engineering, eval pipelines and anything else at the cutting edgeCombine strong software engineering fundamentals with deep awareness of what's happening at the frontier of LLMs and agentic systemsThrive in startup environments where the problem is ambiguous and the team is smallHave 2-8 years of experience, ideally with experience at at least one high-growth company Compensation $200,000 – $400,000+ base salary depending on experience and role. Many positions include meaningful equity at pre-seed through Series B stage companies.The Interview Process (Typical) Screening conversation looking for communication skills, cultural fit, genuine curiosity about AITechnical deep-dive talks on architecture thinking, how you'd design an AI system for a real problemCoding or pairing sessions building