Founding Engineer | Seed-stage AI SaaS (£100k + equity)
We’re hiring for a seed-stage SaaS startup backed by Balderton (near £5m raised) that’s using AI to fundamentally redefine its product.
The company is pre-PMF and mid-pivot , at a genuine inflection point, and looking for a hands-on engineer (~80% coding) to help shape the product, architecture, and technical foundations from the ground up.
Compensation
Full-stack engineering (backend-leaning): Next.js (FE + BE), Node.js, TypeScript , with some legacy Python
Building alongside a small, senior team (3 engineers) with true peer ownership
Shipping real-world AI / agentic systems, not proof of concepts
Hybrid: 2+ days per week in Moorgate
If you love building SaaS products with AI and want founding-level ownership, we should talk
Founding Engineer | Seed-stage AI SaaS (£100k + equity)