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Temporary/Casual
Technology
MB

UI Developer

McGregor BoyallLondon🇬🇧United KingdomPosted 2 Sept 2026

Why This Role Stands Out

This hybrid UI Developer role offers a fantastic opportunity to lead front-end architecture for a high-performance trading platform, leveraging your expertise in React and RxJS to drive innovation within a reputable financial services technology program. You'll thrive here if you're a skilled developer eager to mentor others and contribute to cutting-edge electronic trading solutions. Apply now to shape the future of financial technology!

Quick Overview

Seniority
Mid Senior
Employment type
Temporary/Casual
Work mode
Hybrid
Location
London, United Kingdom
RxJSStorybookJavaPlaywrightReactReduxTypeScriptViteVitest

Job Description

UI Developer - Electronic Trading

We are recruiting for a Senior UI Developer to join a major financial services technology programme, working on a high-performance Single Dealer Platform supporting electronic trading.

Based out of their City of London offices you will join on an initial 12 month contract.

Key Responsibilities
  • Lead UI development and Front End architecture.
  • Build scalable, low-latency trading interfaces using React and RxJS.
  • Work closely with Product, UX and Backend teams.
  • Provide technical leadership and mentoring to UI engineers.
  • Integrate with Java Back End services and Real Time data streams.
  • Drive performance, scalability and modernisation of the UI platform.
Key Skills
  • Strong React, TypeScript and RxJS experience.
  • Experience with Redux/Context API, WebSockets and Vite.
  • Knowledge of micro-frontends and modular architecture.
  • Experience with Vitest, Playwright, Storybook or similar.
  • OpenFin experience is advantageous.
  • Financial markets experience, particularly FX, Fixed Income or Electronic Trading, is highly desirable.
  • Strong communication, leadership and problem-solving skills.

If you're an experienced UI Developer with a strong React/RxJS background and experience in high-performance environments, we'd be keen to hear from you.

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