Senior Full Stack Engineer (Backend leaning)
Location
london, england
Job Type
Full-time
Category
Other-General
Posted
June 06, 2026
Senior Full-Stack Engineer (Backend-Leaning) – SaaS + AI
Join a seed-stage SaaS startup backed by leading VCs, adopting AI to redefine their product. They’re pre-PMF, mid-pivot, and need a hands-on engineer (~80% coding) to help build, define, and scale.
Comp: Up to £100k + strong early stack equity package
What you’ll do
- Full-stack engineering, backend-leaning (Next.js FE + BE, Node.js, TypeScript, legacy Python)
- Collaborate with product & CEO to shape the roadmap
- Help guide a small, senior team
- Work on AI / agentic systems integration
Setup
Hybrid: 2+ days/week in Moorgate
Small, flat team with fast decisions
If you’re a hands-on engineer who loves building SaaS products with AI, let’s chat!
Senior Full-Stack Engineer (Backend-Leaning) – SaaS + AI