Senior Backend / Full-Stack Engineer (E5/E6 Level) - AI-Native Startup - Strong Comp + Equity

My client, a high-growth AI-native startup based in Central London, is looking for an exceptional Senior Backend or Full-Stack Engineer to join their core engineering team.

This is a rare opportunity to join an engineering-led company at an early but high-traction stage, working directly on business-critical AI and communications infrastructure used in real-world production environments.

The company operates as a genuinely AI-native engineering organisation. AI tooling, LLM-powered workflows, and rapid iteration are deeply embedded into how the team builds products day-to-day. The engineering culture is highly execution-focused, fast-moving, and extremely hands-on.

They are specifically looking for engineers operating at roughly Meta E5/E6 level (or equivalent from companies such as Meta, WhatsApp, Shopify, Stripe, Revolut, Deliveroo, etc.) with strong product engineering instincts and deep technical ability.

The ideal candidate is a highly capabl...