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Full-Stack Engineer - Global Fintech (Joining AI Innovation Team) - £80k + bonus - TypeScript/ Python + Interest in AI (2-4 years experience needed!)

Full-Stack Engineer - Global Fintech (Joining AI Innovation Team) - £80k + bonus - TypeScript/ Python + Interest in AI (2-4 years experience needed!)

Hybrid

London, United kingdom

£ 80,000 /year

Junior

Full Time

19-02-2026

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Skills

Python TypeScript fast api react AWS OpenAI Langchain

Job Specifications

I am recruiting for a Full-Stack Engineer for an AI Innovation Team for a leading global fintech.

This brand new team (embedded within a major global fintech powerhouse) will be building a brand new AI Platform (AI‑driven compliance technology for a platform used across nearly 30 markets)

Within this team you will be shaping the next generation of intelligent systems that transform how financial crime is detected, investigated, and prevented worldwide.

This is a chance to:

Join a greenfield team and work on a very exciting & innovative project (from the off!)
Build production-grade AI agents used in live financial workflows
Work like a startup, backed by the resources of a global fintech
Shape a platform with massive scale and real impact within weeks
Work in a team with 3 (growing to 6) Seniors, 1 x Staff Engineer, hands on EM + peers your level

You need:

2+ years engineering experience
React + TypeScript knowledge
Python backend skills (Fast API)
API design across REST + WebSockets/SSE
AWS
Interest in AI (Any experience is a plus - (OpenAI, LLMs, Claude, Langchain etc)

Great chance to get commercial AI experience in an experienced team

This is 4 days a week in their Central London office

Paying up to £80,000 + Bonus

About the Company

La Fosse is on a mission to help our customers achieve their ambitions, working by their side to create a total talent solution from the classroom to the boardroom. Our vision is simple: to lead by example to achieve a change in the standards of care within our industry. We partner with our customers to build solutions for their business and people challenges, leveraging our recruitment, academy, solutions, and executive search offerings. Our expert teams work at all levels on a permanent, contract, interim, and executive ... Know more