Senior Real-Time UI Engineer - React/TypeScript

HCL Technologies Limited; Greater London; On-site; GBP 60,000 - 90,000; Full time

Job summary

HCLTech in London seeks a UI Developer with strong React and TypeScript expertise to build time-critical, high-availability UI applications. You will own the full UI development lifecycle from design through testing and deployment, collaborating with backend and QA teams to deliver performant, scalable user interfaces for financial services platforms.

Experience with WebSockets, Redux, and modern frontend architectures is valued, along with practical knowledge of Playwright or Cypress for UI

Qualifications

• Experience with real-time communication via WebSockets, SSE, and REST APIs.
• Strong state management skills using libraries like Redux.
• Solid understanding of micro-frontends and SPAs.
• Hands-on testing experience with React Testing Library and Jest.
• Familiarity with UI automation frameworks such as Playwright or Cypress.

Responsibilities

• Conceptualize, design and deliver UI components and applications per defined scope.
• Build time-critical, high-availability and high-performance UI solutions.
• Collaborate with backend and QA teams to ensure robust, scalable interfaces.

Skills

Real-Time Communications

State Management

Architecture

Testing

UI Automation

Tools

React

TypeScript

Redux

Playwright

Cypress

Job description

HCLTech in London seeks a UI Developer with strong React and TypeScript expertise to build time-critical, high-availability UI applications. You will own the full UI development lifecycle from design through testing and deployment, collaborating with backend and QA teams to deliver performant, scalable user interfaces for financial services platforms.

Experience with WebSockets, Redux, and modern frontend architectures is valued, along with practical knowledge of Playwright or Cypress for UI