Founding Engineer (TypeScript/AI)

🚀 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

Up to £100k + meaningful equity

🧑 💻 What you’ll be doing

Full-stack engineering (backend-leaning): Next.js (FE + BE), Node.js, TypeScript, with some legacy Python
Working closely with the CEO & product to shape roadmap and direction
Building alongside a small, senior team (3 engineers) with true peer ownership
Iterating fast
Shipping real-world AI / agentic systems, not proof of concepts

🏢 Setup & culture

Hybrid: 2+ days per week in Moorgate
Small, flat team — low ego, high agency
Fast decisions, high trust, minimal processes

If you love building SaaS products with AI and want founding-level ownership, we should talk 👋

🚀 Founding Engineer | Seed-stage AI SaaS (£100k + equity)

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