IT & Software

Frontend Engineer

Carousel Consultancy

London · Greater London · United Kingdom

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Overview

As a Frontend Engineer, you will build and maintain high-performance, data-rich interfaces using TypeScript and React. You’ll optimise frontend performance, uphold code quality with automated tests, and troubleshoot edge cases to ensure a smooth user experience. You will proactively identify improvements and grow with a rapidly scaling fintech team. This role sits at the core of delivering a performant, scalable frontend capable of supporting a growing product. You’ll work in a fast-paced, collaborative environment that values learning and impact.

Responsibilities
  • Build, develop and maintain complex data-rich interfaces in TypeScript and React
  • Profile and optimise frontend code to improve performance
  • Maintain code quality through best practices and automated testing
  • Troubleshoot frontend issues including edge cases
  • Identify areas for improvement and implement changes
  • Grow and develop with the company as it scales
Key requirements
  • Experience building complex, high-performance frontend applications in TypeScript and React
  • Experience profiling and optimising frontend performance
  • Strong commitment to code quality, testing, and handling edge cases
  • Able to contribute to intense technical discussions
  • Experience with AWS is beneficial
  • Experience in FinTech is advantageous
  • Strong communication and ability to liaise across levels
  • Collaborative, able to work both independently and in a team
  • Comfortable in a fast-paced, rapid-growth environment
  • Highly ambitious, driven and focused
  • collaborative
  • strong communication
  • driven and ambitious
  • TypeScript
  • React
  • frontend performance profiling

Reference: WJ-747_31291446 · Posted 13 Nov 2026, 04:55 AM

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