Senior UI Developer

  • Jobtailor
  • Leeds, Yorkshire
  • 11/07/2026
Full time Information Technology Telecommunications

Job Description

Responsibilities
  • Lead the development of user interfaces using React and related libraries to create highly interactive, user-friendly, and visually appealing applications.
  • Work closely with product owners, UX/UI designers, and back-end engineers to transform business requirements into technical solutions, ensuring a seamless e-commerce experience.
  • Focus on optimizing the performance of the UI to ensure fast load times, smooth navigation, and a reactive experience across devices.
  • Implement data fetching and state management through Apollo Client and integrate the UI with RESTful and GraphQL APIs built with Node.js and Apollo Server.
  • Advocate for and follow best practices for software development, including clean, maintainable code, automated testing, and code reviews.
  • Mentor junior and mid-level developers, offering guidance on React development, front-end architecture, and best practices.
  • Work with back-end engineers to integrate front-end with back-end services and help shape the architecture and performance of the entire application stack.
Qualifications
  • Proven experience as a Senior Front-End or UI Developer, with hands-on React experience.
  • Competency in ReactJS, TypeScript, Node.js, Loadable Components, Jest, Styled Components, Storybook, GraphQL and Apollo (client/server) and Akamai caching.
  • Strong understanding of React and its ecosystem.
  • Experience with Apollo Client and GraphQL queries, mutation handling, and state management.
  • Solid knowledge of Node.js and how to integrate the front-end with back-end services.
  • Expertise in HTML5, CSS3, and JavaScript (ES6+).
  • Experience with responsive design.
  • Experience with GitLab and their GitFlow version control process.
  • Ability to collaborate with UX/UI designers and translate Figma and Storybook prototypes into functional, high-quality user interfaces.
  • Strong analytical and problem-solving skills, focusing on user-centric solutions.
  • Familiarity with front-end testing frameworks (Jest in particular).
  • Experience with A/B testing via Adobe Target.
  • Proficient in optimizing UI performance for large-scale applications, with experience implementing lazy loading, code splitting, and other advanced optimization techniques.
  • Previous experience in an Agile/Scrum development environment.
  • Excellent communication skills, both written and verbal, with the ability to work in partnership and across teams.