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Founding Engineer

New York City Metropolitan Area Full-time On-site $150k — $300k per year 08/25/2026 Job ID: 000033
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AI-powered product development retrieval memory agent frameworks context engineering

Summary

What you’ll impact

Fonzi is seeking founding engineers with 2‑8 years of experience who have built end‑to‑end AI‑powered products and possess deep knowledge of retrieval, memory, agent frameworks, context engineering, and LLMs. Candidates must thrive in ambiguous startup environments and be ready to engage with pre‑vetted AI startups through Fonzi's recruiting platform.

Responsibilities

What you'll do

  • Work on assigned tasks
  • Collaborate with team members
  • Meet project deadlines

Requirements

What you’ll bring

  • Have built AI-powered products end-to-end, not just prototypes, but systems handling real users
  • Can talk fluently about retrieval, memory, agent frameworks, context engineering, eval pipelines and anything else at the cutting edge
  • Combine strong software engineering fundamentals with deep awareness of what's happening at the frontier of LLMs and agentic systems
  • Thrive in startup environments where the problem is ambiguous and the team is small
  • Have 2-8 years of experience, ideally with experience at at least one high-growth company

Ready to Move Forward?

Apply now and our recruiting team will reach out with next steps, interview guidance, and client insights tailored to this role.