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Posted 4mo ago

Lead Full-Stack Engineer

@ Complexio
London, England, United Kingdom
RemoteFull Time
Responsibilities:own frontend, shape product direction, ship features
Requirements Summary:5+ years frontend production experience; strong product sense; real-time UI; end-to-end shipping; comfortable with AI-assisted development.
Technical Tools Mentioned:REST, WebSockets, Streaming UI, JavaScript, TypeScript, React
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Job Description

Complexio is building Stevie — an enterprise AI knowledge assistant that gives executives and operators a complete view of their organization through knowledge graphs. Our customers are large maritime shipping companies managing hundreds of vessels, thousands of daily emails, and complex commercial operations.

We're looking for a Senior or Lead Frontend Engineer to own Stevie's frontend. The interface is the product — it determines whether enterprise customers trust the intelligence, get value quickly, and come back. You'll shape all of that.

Why This Role

   Enterprise AI UX is unsolved. You won't copy patterns — you'll create them. Citations from knowledge graphs, streaming AI responses that feel trustworthy, confidence indicators on operational intelligence.

   You own the full frontend. No separate frontend team. You are it — with real influence on product direction and architectural decisions.

   Flat org, real impact. Domain owners have authority. Engineering decisions are made by engineers, not managers.

You'll own the full frontend — conversational AI interfaces, content feeds, document generation, collaborative features. The product is evolving fast and you'll shape what gets built and how.