Senior Front – End Developer

A rapidly growing, UK-based multi-channel retail organisation is seeking an experienced Senior Front-End Developer to join its technology team. This is a hands-on role focused on building and optimising large-scale, customer-facing digital platforms across multiple e-commerce brands. You will play a key role in shaping front-end architecture, improving performance and accessibility, and supporting personalisation initiatives. The role also includes mentoring responsibilities and close collaboration with cross-functional teams. The Role As a Senior Front-End Developer, you will work across multiple websites within a large, enterprise environment, contributing to high-traffic, customer-focused features. Key Responsibilities Develop and optimise features across multiple e-commerce websites Build responsive UI components using HTML, SCSS, JavaScript, TypeScript, React and PHP Contribute to kiosk-based applications built with TypeScript Maintain and improve large, scalable front-end codebases Drive improvements in performance, accessibility and Core Web Vitals Collaborate with UX, QA, product and cross-functional delivery teams Configure, manage and debug Google Tag Manager Support A/B testing, CRO and personalisation initiatives Provide mentoring and technical guidance to a front-end developer Contribute to front-end standards and architectural discussions About You Confident communicator with strong collaboration skills Proactive in identifying and resolving technical challenges Passionate about code quality and customer experience Interested in AI-assisted development workflows Enjoys mentoring and supporting colleagues Technical Requirements Essential: 5+ years’ commercial front-end development experience Strong knowledge of HTML, SCSS, JavaScript, jQuery, TypeScript, React and PHP Experience with Node.js, npm, webpack and modern build tools Google Tag Manager and GA4 event tracking Comfortable working in large, enterprise-level codebases Background in B2C e-commerce, ideally within an omni-channel environment Desirable: Experience with personalisation platforms (e.g. Dynamic Yield) Payment integrations (e.g. Stripe, Worldpay) Cypress and/or Storybook SAP Commerce Cloud (Accelerator) front-end experience