Job Description

Product Engineer (Mid-Level/Senior) at Sunsave. Own problems end to end in a small squad focused on one area (acquisition, installation, in-life, or energy). You will work with users, run in production, and delegate implementation while owning the thinking. Agents do a lot of the implementation. We expect you to use them daily, but maintain leadership over the problem space and the code you merge. We offer finance and hold customer data, so correctness, auditability and security matter a lot. Experience: 2+ years running production software for mid-level, 6+ years for senior. Tech stack: TypeScript, NestJS, React/Next.js, PostgreSQL and AWS are a plus but not required. Right to work in the UK required. The interview is built for how we work: ~45 min async review of a PR written with AI, then ~90 min live session to shape and build a small problem with your own AI tools. JD: Sunsave JD link. Apply: WelcometoTheJungle job board link.