Senior Technical Specialist

HCLTech

London, UK

11 days ago

Role details

Contract type

Permanent contract

Employment type

Full-time (> 32 hours)

Experience level

Expert

Working hours

Regular working hours

Job source

uk.indeed.com

Tech stack

HTML JavaScript (Programming Language) Unit Testing Cascading Style Sheets (CSS) Computer Programming Design of User Interfaces Microsoft UI Automation Performance Tuning TypeScript WebSocket WebRTC ReactJS

+7 more

Cypress (Programming Language) Playwright Reactive Programming Front End Software Development React Redux React Testing Library Restful APIs

Job description

To conceptualize, design and deliver product / sustenance delivery through the team as per defined scope,by adopting industry-leading practices, thus contributing significantly to the advancement and success of the project.

Requirements

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.

Technical Skills & Expertise

Frontend Technologies: Expert-level proficiency in HTML, CSS, JavaScript, React, and TypeScript

Real-Time Communication: Strong understanding of WebSockets, Server-Sent Events (SSE), and REST APIs

State Management & Programming: Solid experience with state management libraries (e.g., Redux) and reactive programming paradigms

Architecture: Strong understanding of micro-frontends and Single Page Applications (SPA)

Testing: Hands-on experience with React Testing Library / Jest for unit and integration testing

UI Automation (Good to Have): Exposure to frameworks like Playwright or Cypress

Desired Experience

Experience working on financial services or trading platforms is an advantage

Strong understanding of performance optimization and low-latency UI applications

Experience with highly available, mission-critical systems