Full Stack Engineer (Java/React) - FX Trading
Summary
12-month contract for a full-stack engineer in London building FX trading software for a tier-1 bank via a global consulting firm; up to £535/day inside IR35. Day to day: design and scale server-side services (Kotlin/Java, Spring Boot, Kafka) and client-side apps (TypeScript/React), owning features end to end, 3 days per week on-site.
Full Stack Engineer (Java/Kotlin & React) | FX Trading | Contract | London | Up to £535 p/day (Inside IR35 via Umbrella)
I'm working with a global consulting firm that's building the strategic software behind a tier-1 bank's FX trading business in London, and they need a Full Stack Engineer to join the team.
It's proper end-to-end ownership, from first idea through to production and beyond, in a team that takes AI-assisted development seriously and has zero tolerance for sloppy code.
What you'll be doing:
- Designing, building and scaling FX trading products across server and client side
- Owning features end to end, from inception to production support
- Driving technical improvements, simplifications and architecture changes
What they're looking for:
- Strong production Kotlin or Java, with Spring Boot, Kafka and Project Reactor
- REST and WebSocket streaming API design
- TypeScript and React, with Playwright for end-to-end testing
- Hands-on use of modern AI development tools
12 month initial contract, 3 days per week on-site in London, starting ASAP.