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# React.js UI Developer

- **Company:** HCLTech
- **Location:** Slough, UK
- **Contract:** Permanent contract
- **Skills:** HTML, JavaScript (Programming Language), Cascading Style Sheets (CSS), Computer Programming, Design of User Interfaces, Performance Tuning, TypeScript, WebSocket, ReactJS, Cypress (Programming Language), Low Latency, Playwright, Reactive Programming, Front End Software Development, React Redux, React Testing Library
- **Published:** July 28, 2026
- **Apply:** https://www.apply4u.co.uk/jobs/x/42179633/

## About the Role

Technical Skills & Expertise-Frontend Technologies: Expert-level proficiency in HTML, CSS, JavaScript, React, and TypeScriptReal-Time Communication: Strong understanding of WebSockets, Server-Sent Events (SSE), and REST APIsState Management & Programming: Solid experience with state management libraries (e.g., Redux) and reactive programming paradigmsArchitecture: Strong understanding of micro-frontends and Single Page Applications (SPA)Testing: Hands-on experience with React Testing Library / Jest for unit and integration testingUI Automation (Good to Have): Exposure to frameworks like Playwright or Cypress
Desired ExperienceExperience working on financial services or trading platforms is an advantageStrong understanding of performance optimization and low-latency UI applicationsExperience with highly available, mission-critical systems.

## Description

Job Description: UI Developer (React, TypeScript and Low-Latency)Role Overview-We are seeking a highly skilled UI Developer with strong expertise in building time-critical, high-availability, and high-performance applications. The ideal candidate will have hands-on experience across the full UI development lifecycle, including design, development, testing, and deployment.


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