Senior Full Stack Engineer (Backend leaning)

Company:  Oliver Bernard
Location: London
Closing Date: 06/07/2026
Salary: £100,000 per annum
Hours: Full Time
Type: Permanent

Job Description

🚀 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

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