Product Engineer (Mid-Level / Senior)
Confirmed on the employer's own hiring board on Nov 10, 2026. First seen by Alion on Nov 9, 2026.
Join Sunsave, a fast-growing company revolutionizing the energy industry. As a Product Engineer or Senior Product Engineer, you'll own problems end to end, from shaping requirements to running solutions in production. You'll work closely with users, ship early, and build AI-native solutions. This is a full-stack role based in London, with a competitive salary, equity, private health insurance, and flexible working.
Missions
- Own problems end to end, from shaping the requirements to running the solution in production.
- Work directly with users to shape the simplest solution, and say no when a requirement solves the wrong problem.
- Put first versions in front of real users fast, learn from real use, and drop what doesn't work.
Profil recherché
You've built and run production software at a fast-growing product company. We care more about what you've built, and how you think, than about your title.
Builds with AI: You use coding agents (Claude Code, Cursor or similar) every day. You delegate the implementation, never the thinking, and you own every line you merge.
Product-driven: You talk to users, challenge requirements, and can show a decision that changed what you built.
Engineering: You design for correctness and failure, and you've been on the hook when something broke.
Ownership: You set the measure of success before building, and check that what you build achieves it.
Intensity: You've chosen fast-moving, high-expectation environments before and do your best work in them.
If you have experience in these areas, it's a bonus (but it's not a requirement) : TypeScript, NestJS, React/Next.js, PostgreSQL, AWS. Payments, lending or other regulated data. Energy or hardware integrations.