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

HCLTech; Greater London; On-site; GBP 65,000 - 90,000; Full time

Job summary

HCLTech is seeking an experienced UI Developer to build time-critical, high-availability UI applications using React and TypeScript. You will work across the full UI development lifecycle, from design through deployment, with emphasis on performance and low-latency interfaces.

The role involves working with modern frontend patterns, state management (Redux), and testing with RTL/Jest, plus exposure to Playwright or Cypress for automation.

Qualifications

• Hands-on experience across the full UI development lifecycle from design to deployment.
• Strong understanding of real-time communication and APIs (WebSockets, SSE, REST).
• Experience with state management and modern frontend architectures (Redux, SPA).

Responsibilities

• Design, develop and test high-performance UI applications.
• Collaborate on architecture for micro-frontends and SPA patterns.
• Implement UI automation and end-to-end tests where appropriate.

Skills

React

TypeScript

WebSockets

SSE

REST APIs

Redux

SPA

RTL/Jest Testing

Tools

Playwright

Cypress

React Testing Library

Jest

Job description

HCLTech is seeking an experienced UI Developer to build time-critical, high-availability UI applications using React and TypeScript. You will work across the full UI development lifecycle, from design through deployment, with emphasis on performance and low-latency interfaces.

The role involves working with modern frontend patterns, state management (Redux), and testing with RTL/Jest, plus exposure to Playwright or Cypress for automation.