AYN

Full Stack Engineer

True Talent Solutions Partners · San Francisco · onsite

ABOUT THE ROLE

Join a product engineering team building software that helps organizations improve the reliability of AI agents in production. This backend-leaning, full-stack role combines customer problem-solving with hands-on development across agent investigation, evaluation, and debugging workflows.

WHAT YOU'LL DO

- Build product experiences for agent investigations, evaluations, trajectory debugging, verification, and replay.

- Work directly with customers to understand agent failures, shape product decisions, and iterate on solutions.

- Develop APIs, data models, internal systems, and user-facing product surfaces across the stack.

- Build systems that support large-scale investigations using production traces.

- Design platform capabilities such as workspaces, permissions, billing, usage, SDKs, and terminal-first developer tools.

- Collaborate with teams building production AI agents and turn their needs into shipped product improvements.

WHAT WE'RE LOOKING FOR

- Five to eight years of full-stack product engineering experience, with a backend emphasis.

- Experience shipping end-to-end products, including polished interfaces with React or Next.js and backend services.

- Strong TypeScript skills and hands-on experience with Python or Node.js; familiarity with PostgreSQL is relevant.

- Experience building AI agents, LLM-powered products, or agentic systems, with practical familiarity with LLM APIs, evaluation, or debugging tools.

- Ability to design clean APIs and data models, debug production issues, and influence product direction through engineering work.

- Strong computer science fundamentals and experience working directly with customers or product teams.

COMPENSATION & BENEFITS

Base salary: $230,000 to $300,000 annually. Visa sponsorship is available.

LOCATION

On-site in San Francisco, California, United States.

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