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Avnet

Senior UI Developer

Avnet

Join Avnet as a Senior UI Developer to create user-centric designs for eCommerce. Collaborate with cross-functional teams to deliver a high-performance online storefront.

Posted 5/19/2026full-timeLeeds • 🇬🇧 United KingdomSeniorWebsite

Tech Stack

Tools & technologies
ApolloGraphQLJavaScriptJestNode.jsReactTypeScript

About the role

Key responsibilities & impact
  • 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.
  • Works with back-end engineers to integrate front-end with back-end services and help shape the architecture and performance of the entire application stack.

Requirements

What you’ll need
  • Proven experience as a Senior Front-End or UI Developer, with hands-on React experience.
  • Competency in all of these technologies and tools - 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).
  • We also do 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.

Benefits

Comp & perks
  • A supportive team environment where everyone really is working toward the same goal.
  • A strong open-door policy within management
  • An environment where you will be given the tools and opportunities to further your career
  • Pension scheme
  • Simply Health Plan
  • 25 days holiday plus bank holidays with option to buy additional holiday
  • FREE Onsite Parking
  • Flexible home working
  • Cycle to work Scheme
  • Reward schemes

ATS Keywords

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Hard Skills & Tools
ReactTypeScriptNode.jsHTML5CSS3JavaScriptApollo ClientGraphQLJestLoadable Components
Soft Skills
analytical skillsproblem-solving skillscollaborationmentoringcommunication skills