Real-Time UI Architect - React & TypeScript

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

Job summary

HCLTech is seeking a UI Developer to build real-time, high-availability front-end applications using React and TypeScript. The role focuses on time-critical UI delivery, robust state management, and seamless integration with backend services.

Candidates should have expertise in WebSockets, SSE, and REST APIs, with experience in Redux, SPA architectures, and test automation using Playwright/Cypress. Financial services platform experience is a plus.

Qualifications

• Experience building real-time, time-critical UI applications for finance or trading platforms is a plus.
• Strong understanding of performance optimization and low-latency UI design.

Responsibilities

• Develop high-performance UI components using React and TypeScript.
• Ensure time-critical, highly available front-end systems with low latency.
• Implement robust client-side architecture including micro-frontends/Spa concepts.
• Write unit/integration tests with React Testing Library and Jest.

Skills

React

TypeScript

WebSockets

SSE

REST APIs

Redux

SPA

Low-latency UI

Tools

Playwright

Cypress

React Testing Library

Jest

Job description

HCLTech is seeking a UI Developer to build real-time, high-availability front-end applications using React and TypeScript. The role focuses on time-critical UI delivery, robust state management, and seamless integration with backend services.

Candidates should have expertise in WebSockets, SSE, and REST APIs, with experience in Redux, SPA architectures, and test automation using Playwright/Cypress. Financial services platform experience is a plus.