Fonzi
Senior AI Product Engineer
New York City · Senior
Sponsorship not specified$175k-$225kDetected 179 days ago
TypeScriptPythonReactNext.jsNode.jsPostgreSQLGCPMachine LearningLLMsLeadershipAdaptability
About the role
- The Senior AI Product Engineer is a new kind of role for a new era of software development.
- The line between "full-stack engineer" and "AI engineer" is blurring fast-and at Fonzi, we've stopped pretending it exists.
- We're looking for engineers who've had the "aha moment"-who understand that AI changes everything about how software gets built-and who want to work at a company where that belief is baked into every product decision.
Responsibilities
- You'll help define the "what" not just build the "how."
- Our tech lead wants to hand off entire features, not provide ongoing support.
- Freedom to build and break things.
- build the infrastructure where AI learns what engineers actually do, what they want, and matches them to opportunities automatically.
- We're not just using AI at the edges-we're building toward a future where intelligent systems handle the entire recruiting workflow, and we need engineers who want to build that future with us.
Requirements
- TypeScript across the stack: Strong proficiency in TypeScript, Node.js, React, and Next.js-you'll move fluidly between backend and frontend
- Startup velocity: 5+ years of experience with meaningful time in fast-paced environments where you owned problems end-to-end
- Strong proficiency in TypeScript, Node.js, React, and Next.js-you'll move fluidly between backend and frontend
- 5+ years of experience with meaningful time in fast-paced environments where you owned problems end-to-end
Nice to have
- Voice AI or conversational interface experience
- Experience with agentic systems, AI orchestration, or Temporal.io http://Temporal.io
- Background in marketplace, recruiting, or HR technology
- Serverless architecture and GCP experience
- Python for AI/ML tooling
- You've created custom Skills, rules, or workflows for Claude Code, Cursor, or similar tools-you don't just use AI coding assistants, you extend them
- Extreme ownership: You take projects and run.
- Adaptability: Comfortable with rapid pivots, killing work mid-stream, and FIFO priority shifts.
Skills
- PostgreSQL experience-efficient queries, sensible schemas, understanding of how data flows through a system
- A full-stack engineer who's been going deep on AI for the past year and wants to do more
Compensation
- $175,000 - $225,000 base + meaningful equity
Company info
- We're a Series A startup backed by Lightspeed revolutionizing hiring through AI.
- Founded by repeat entrepreneurs (Kumospace), we launched our AI-powered recruiting marketplace in June 2025 and are already revenue-positive with just under 100 employer partners-75%+ are AI-native companies.
- Thousands of engineers are on our platform, and we're running Match Days every two weeks where pre-screened candidates receive competing offers from top employers.
This listing is sourced directly from Fonzi's careers page and normalized into a canonical job model.