Senior Frontend Engineer (React) — Lead UI & Data-Driven Apps

Cognizant; Burgess Hill; Hybrid; GBP 70,000 - 110,000; Full time

Benefits offered by this job

Hybrid work model

Job summary

Cognizant in Burgess Hill is seeking a Senior Frontend Engineer to design, develop, and deliver data-driven web applications. You will join a high-performance distributed engineering team and work with product managers and engineers to build scalable, accessible UI solutions that meet business and compliance needs.

This role blends hands-on technical excellence with leadership, offering opportunities to mentor colleagues, drive best practices, and contribute to agile ceremonies in a hybrid UK

Qualifications

• Bachelor’s degree in information technology, computer science or software engineering, or equivalent practical experience.
• Extensive hands-on frontend experience with React, TypeScript and JavaScript (ES6+).
• Strong experience with state management (Redux or Context API) and data-driven UIs.

Responsibilities

• Architect and develop scalable frontend applications using React, TypeScript, JavaScript (ES6+), HTML5 and CSS3.
• Lead state management and dynamic forms (JSON-schema based) to meet complex business needs.
• Write and maintain automated tests; conduct code reviews and promote engineering best practices.
• Integrate frontend with RESTful APIs and JSON-based services.
• Mentor junior and mid-level engineers and participate in agile ceremonies.

Skills

React

TypeScript

JavaScript (ES6+)

HTML5

CSS3

Redux

Context API

Automated tests

JSON

Agile

Mentoring

Education

Bachelor of Science or Engineering in IT/CS/Software Engineering

Tools

GitHub Actions

CI/CD pipelines

Cloud platforms (AWS/Azure/GCP)

Job description

Cognizant in Burgess Hill is seeking a Senior Frontend Engineer to design, develop, and deliver data-driven web applications. You will join a high-performance distributed engineering team and work with product managers and engineers to build scalable, accessible UI solutions that meet business and compliance needs.

This role blends hands-on technical excellence with leadership, offering opportunities to mentor colleagues, drive best practices, and contribute to agile ceremonies in a hybrid UK