Senior Frontend Developer (React/Shopify) (Remote, Contractual) [HR159]

Responsibilities

• Architect, write, test, and deploy robust, scalable, and secure frontend code using React, HTML5, CSS3/SCSS, and modern JavaScript (ES6+), ensuring all applications undergo thorough testing and debugging before production release
• Maintain and enhance frontend code across both legacy enterprise infrastructure and modern headless/Shopify environments
• Build and maintain a library of reusable frontend components to accelerate feature development and ensure consistency across platforms
• Architect frontend integrations with enterprise backend services and third-party APIs
• Optimise web platforms for maximum speed, scalability, and strong Core Web Vitals, recognising the direct impact of performance on user engagement and conversion
• Implement mobile-first, responsive, cross-browser compatible interfaces aligned with modern web standards
• Ensure all applications comply with Web Content Accessibility Guidelines (WCAG)
• Develop highly intuitive interfaces supporting digital tools such as: Online appointment booking systems, CAD brochure viewers, Trade-focused calculators (e.g. Boiler Pack Builder, Spares Finder)
• Drive the technical execution of the bathrooms.com migration to Shopify, including custom theme development using
• Liquid templating and API integrations
• Develop scalable Shopify frontend solutions that integrate seamlessly with enterprise backend systems
• Identify technical debt within legacy systems and propose modernisation improvements
• Act as the primary technical owner of Google Tag Manager and the site data layer
• Ensure critical lead-generation and appointment-booking forms operate effectively and capture data in a compliant manner
• Work closely with Product Owners to understand business requirements, refine the backlog, and estimate technical effort within an Agile/Scrum framework
• Collaborate with backend developers to ensure efficient API integration and data models
• Partner with UX/UI designers to translate Figma designs into pixel-perfect web experiences
• Work with SEO stakeholders to implement technical improvements that drive organic search performance

Requirements

• 5+ years of professional frontend development experience
• Strong hands-on experience building React-based Single Page Applications (SPAs)
• Advanced proficiency in React, HTML5, CSS3/SCSS, and modern JavaScript (ES6+)
• Strong experience building mobile-first, responsive web applications
• Experience integrating frontend applications with RESTful or GraphQL APIs
• Strong understanding of frontend performance optimisation techniques
• Experience working with Git-based version control
• Experience collaborating within Agile/Scrum product teams
• Ability to work independently while delivering in a fast-paced environment

Nice to Have

• Experience building Shopify themes using Liquid templating
• Familiarity with Shopify Storefront API integrations
• Experience working with headless commerce architectures
• Experience in enterprise environments managing legacy frontend systems
• Familiarity with Google Tag Manager, analytics platforms, and marketing automation tools
• Experience implementing technical SEO improvements
• Background in e-commerce, omnichannel retail, or B2B trade environments

Benefits