UX Engineer TypeScript React – FinTech

Company: Client Server
Apply for the UX Engineer TypeScript React – FinTech
Location: London
Job Description:

Overview

In this role you will shape high-performance, data-rich UX across trading and risk management apps. You’ll collaborate with design and engineering to deliver responsive frontends and real-time visualisations, influencing UI principles and frontend architecture. You’ll build end-to-end features in React/TypeScript, connect to backend services, and advance a scalable frontend monorepo. The position blends human-centered usability with AI-assisted development to improve efficiency and product quality.

Pay / Benefits

  • Private Medical Healthcare including Dental and Vision
  • Pension
  • Share Option scheme
  • Employee Wellness Programme
  • Summer time hours
  • 2k personalised training budget

Responsibilities

  • Deliver end-to-end frontend features for order and risk management systems
  • Collaborate with backend engineers and cross-functional teams on full-stack functionality
  • Develop real-time market data visualisations and high-performance data grids
  • Establish WebSocket-based frontend-backend communication and improve state/data management
  • Contribute to evolution of a scalable frontend monorepo
  • Utilise frontend monitoring and session replay to understand user behaviour and drive improvements
  • Engage in design-to-code automation and tool integrations with Figma and MCP
  • Leverage AI-assisted development tools to enhance coding efficiency and quality

Key requirements

  • Strong React and TypeScript development skills
  • Excellent CSS/UI implementation skills
  • Experience with Zustand and TanStack Query for state management and data fetching
  • Clean, maintainable, testable code with automated testing (Vitest, Playwright)
  • Experience integrating REST APIs and working with OpenAPI specifications
  • Attention to detail and passion for usability and visual consistency
  • Hands-on experience with AI-assisted development tools and agentic workflows
  • Proactive, independent problem solver with ownership mindset
  • Degree in Computer Science or a similar technical field
  • proactive
  • ownership
  • attention to detail
  • React
  • TypeScript
  • CSS

…

Posted: October 16th, 2026