Senior Full-Stack Engineer

Coperniq is building the operating system for contractors. Our goal is simple: give contractors one system—and a team of AI agents—to run their entire business. It is a huge, underserved market, and we intend to build the company that defines it. We’re backed by Y Combinator and Initialized Capital. We’re now looking for a strong full-stack engineer to join our small team. You’ll work across the product, own projects end to end, and build software for complex contractor operations. OUR STACK Backend: Node.js, NestJS, MikroORM, PostgreSQL, TypeScript Frontend: React, TypeScript, GraphQL WHO WE’RE LOOKING FOR - Startup or founding-engineer experience - High energy and a strong bias toward shipping - Autonomous and proactive—you can own a project without constant follow-up - Experience building complex products across multiple domains - Strong judgment and the ability to work through ambiguity - 5+ years experience NICE TO HAVE - Experience building voice AI agents - Experience building AI-powered document or image editing and annotation