UI Developer

Job Title: UI Developer (Contract)

Location: Knutsford (hybrid, 2 days a week)

Contract Duration: Until 30th September 2025

Day Rate: £435 per day (Inside IR35)
Security Clearance: Must be eligible for BPSS

Role Overview: We are seeking an experienced UI Developer for a long-term contract role. The ideal candidate will bring strong front-end development skills and a passion for delivering high-quality user interfaces. You’ll be working with a modern tech stack and will be expected to take part in a HackerEarth coding assessment to demonstrate your technical capabilities.

Key Responsibilities:

• Develop responsive and accessible user interfaces using JavaScript , ReactJS , and associated technologies.
• Collaborate with designers, backend developers, and product managers to deliver UI features.
• Write clean, maintainable, and testable code using modern JavaScript standards.
• Implement unit and integration tests using tools like Jest , React Testing Library , or Cypress .
• Optimize applications for maximum speed and scalability.
• Work with version control systems and CI/CD tools.

Essential Skills & Experience:

• JavaScript (ES6+), HTML5, CSS3
  
  • Experience with SASS , LESS , and CSS pre-processors
• ReactJS (5–7 years minimum)
  
  • Strong knowledge of Hooks , Context API , and Redux
• AJAX/JSON and REST API integration
• Front-end tooling: Node.js , npm , Grunt/Gulp
• Experience with unit testing : Jest, Enzyme, React Testing Library, Nightwatch, or Cypress
• Source control experience: GIT , Perforce
• Exposure to code quality tools like SonarQube
• Good understanding of accessibility standards
• Familiarity with network performance optimization techniques