Salary
£550 - Per Day
Location
Altrincham, United Kingdom
Type
Contract
Workplace
Remote
Published
Sep 30, 2025
Ref
164921
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Contract AI Engineer (JavaScript/TypeScript) – Early Stage Start-up
Remote (London optional) | £500–£550/day | 3 months | Outside IR35

We’re working with an early-stage start-up building AI-driven products and looking for a JavaScript/TypeScript-focused AI Engineer to join on a 3-month contract. You’ll help shape a proof of concept into a production-ready AI solution.

Stack

  • TypeScript, NestJS (GraphQL + WebSockets), Next.js

  • Vertex AI / Gemini (real-time AI/LLM integration)

  • Typesense, Rust, S3, GCP

What you’ll do

  • Develop and iterate on a POC AI agent that can engage in 2-way conversations, ask follow-ups, and provide candidate insights

  • Build features to compare candidates and surface unique strengths

  • Collaborate with backend and frontend teams to rapidly test and evolve functionality

  • Tailor insights to real-world hirer briefs and business challenges

What we’re looking for

  • Strong experience in JavaScript/TypeScript

  • Proficiency with NestJS, GraphQL, and Next.js

  • Experience with AI/ML tooling (Vertex AI, Gemini, or similar)

  • Background in WebSockets/realtime systems

  • Bonus: exposure to Rust, S3, or GCP

Contract details

  • Length: 3 months (possible extension)

  • Rate: £500–£550/day

  • IR35: Outside

  • Location: Remote-first, with the option to work in London

  • Candidates must be UK based

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