Senior Full-Stack Engineer, AI Products

AgenTech Recruiting; San Francisco (CA); Hybrid; USD 200,000 - 275,000; Full time

Job summary

AgenTech Recruiting is seeking a senior full-stack engineer for a product-minded AI startup. You will own features end-to-end, from data model to UI, and ship LLM-powered capabilities that users rely on.

Requirements include 6+ years as a software engineer at VC-backed startups, strong TypeScript, React and Node, and proven ownership. On-site or hybrid in SF/NYC, with base pay $200k–$275k and equity, and US work authorization.

Qualifications

• 6+ years as a software engineer with tenure at VC-backed startups.
• Strong TypeScript, React and Node.
• LLM or agent features you've shipped to production.
• A track record of real ownership, with solid tenure at each company.

Responsibilities

• Own product features end to end, from data model to UI.
• Ship LLM-powered features and agents that real users depend on.
• Help decide what we build, not just how we build it.

Skills

TypeScript

React

Node.js

LLM features shipped

Ownership track record

Tools

Cursor

Claude Code

AWS

PostgreSQL

Job description

We're a small, product-minded AI startup hiring a senior full-stack engineer who wants real ownership over what we build.

What you'll do

• Own product features end to end, from data model to UI
• Ship LLM-powered features and agents that real users depend on
• Help decide what we build, not just how we build it

What we're looking for

• 6+ years as a software engineer, including time at VC-backed startups
• Strong TypeScript, React and Node
• LLM or agent features you've shipped to production
• A track record of real ownership, with solid tenure at each company

Nice to have

• Python
• Daily use of AI coding tools like Cursor or Claude Code
• AWS and Postgres
• Experience building evals for LLM features
• Founding or early-engineer experience

Pay

• $200K to $275K base, plus equity

Location and work authorization

• New York City or San Francisco preferred, on-site or hybrid; remote possible
• Must be legally authorized to work in the US

Applications accepted through December 31, 2026.