React Frontend Architect: Real-Time, Low-Latency UI

HCLTech; Slough; On-site; GBP 55,000 - 85,000; Full time

Job summary

HCLTech is seeking a UI Developer with strong React, TypeScript and AI experience to build time-critical, high-availability web interfaces. You will own the full UI development lifecycle from design through deployment, collaborating with backend engineers, QA, and product teams to deliver scalable user experiences.

The role requires hands-on expertise in modern frontend stacks, real-time communication, and robust testing using React Testing Library and Jest; familiarity with micro-frontends,

Qualifications

• Frontend technologies: HTML, CSS, JavaScript, React, and TypeScript.
• Real-time communication: WebSockets, SSE, REST APIs.
• State management and reactive programming (Redux).
• Micro-frontends and SPAs knowledge.
• Testing with React Testing Library and Jest.
• UI automation tools like Playwright or Cypress (nice to have).

Skills

HTML

CSS

JavaScript

React

TypeScript

WebSockets

SSE

REST APIs

Redux

SPA

Playwright

Cypress

Tools

React Testing Library

Jest

Playwright

Cypress

Job description

HCLTech is seeking a UI Developer with strong React, TypeScript and AI experience to build time-critical, high-availability web interfaces. You will own the full UI development lifecycle from design through deployment, collaborating with backend engineers, QA, and product teams to deliver scalable user experiences.

The role requires hands-on expertise in modern frontend stacks, real-time communication, and robust testing using React Testing Library and Jest; familiarity with micro-frontends,