Senior Front-End Developer
Posted Updated
Summary
Senior hands-on front-end developer in London owning the quality, performance and maintainability of Disturbia's customer-facing Shopify Plus storefronts across multiple international markets. Day to day: theme architecture, Core Web Vitals/accessibility work, CRO experimentation, and setting front-end engineering standards using Shopify Liquid, modern HTML/CSS/JavaScript and Git workflows.
As Disturbia continues to grow, we are looking for a Senior Front-End Developer to join our IT & Dev team in London. This is a senior, hands-on role with ownership of the quality, performance and maintainability of our customer-facing Shopify experience. The successful candidate will translate commercial and creative priorities into fast, accessible and engaging storefront experiences; lead theme architecture and front-end engineering standards; and use data, experimentation and sound technical judgement to improve conversion and customer experience.
Our e-commerce operation is centred on a multi-store Shopify Plus environment serving multiple international markets. The storefronts integrate with marketing, analytics, review, customer service, logistics and mobile-app platforms, with additional capabilities delivered through a combination of in-house solutions and carefully selected third-party apps.
Our e-commerce operation is centred on a multi-store Shopify Plus environment serving multiple international markets. The storefronts integrate with marketing, analytics, review, customer service, logistics and mobile-app platforms, with additional capabilities delivered through a combination of in-house solutions and carefully selected third-party apps.
Reporting to the Director of IT, the successful candidate will take technical ownership of front-end delivery across the Shopify Plus ecosystem. They will work closely with e-commerce, creative, marketing and technical colleagues to turn business goals and customer insight into robust, measurable improvements, while setting standards for front-end architecture, code quality, testing and release discipline.
The successful candidate will:
- Own the architecture, development and continuous improvement of Shopify themes across multiple storefronts and international markets.
- Turn customer insight, commercial priorities and design concepts into high-quality, reusable front-end experiences that improve conversion and customer experience.
- Lead optimisation of storefront performance, accessibility, responsiveness and Core Web Vitals.
- Partner with e-commerce, marketing and creative teams to deliver data-informed improvements through experimentation, analytics and CRO initiatives.
- Establish and maintain front-end engineering standards, component libraries, testing practices and technical documentation.
- Assess and implement new technologies, integrations and third-party applications that enhance customer experience and business performance.
- Take ownership of projects from discovery and technical design through implementation, release and post-launch monitoring, working independently with minimal supervision.
- Proactively identify technical debt, risks and opportunities for innovation, continuously improving both the storefront and development workflows
Candidates should have substantial hands-on experience delivering production front-end solutions within the Shopify ecosystem. They must be able to demonstrate the following essential skills:
- Advanced Shopify Liquid development experience within Shopify Plus environments.
- Strong expertise in modern HTML, CSS and JavaScript, with a deep understanding of browser performance and rendering behaviour.
- Experience building scalable, reusable front-end components for complex, high-traffic e-commerce websites.
- The ability to translate design concepts, UX requirements and customer needs into production-ready experiences.
- Strong knowledge of Git, code review processes, testing practices and modern deployment workflows.
- Commercial awareness, using analytics, experimentation and performance data to influence technical decisions and drive customer outcomes.
- Excellent communication skills with the ability to work across both technical and non-technical stakeholders and provide technical leadership.
- A proactive, self-directed approach with the ability to identify opportunities, solve problems independently and continuously improve platforms, processes and ways of working
The following skills are desirable but not essential
- Working with Shopify Storefront, GraphQL or REST APIs and integrating front-end experiences with third-party services
- Developing Shopify Functions and UI Extensions using Preact for checkout, customer account and admin extensibility
- Developing embedded Shopify admin apps using React Router, App Bridge and Polaris
- Developing theme app extensions
- Building server-side services, automations or edge functionality, including experience with Cloudflare Workers and related technologies
- Implementing CRO and experimentation platforms, analytics implementation, feature flags or personalisation
- Design systems, component libraries, visual regression testing or end-to-end testing tools
Personal qualities
- Analytical and focused - prioritising improvements that will have the greatest positive impact on the business
- Strong initiative - proactively identifying improvements and potential issues early
- Collaborative communicator - working effectively with technical and non‑technical teams
- Adaptable - responding well to evolving e‑commerce, technology and Shopify platform changes
- Motivated - with the ability to work to deadlines, manage workload, and deliver reliably
- Precise - and with an impeccable eye for detail
- Competitive Salary, subject to skills and experience, with potential bonus and paid overtime
- Annual leave base starting at 25 days per year (+ bank holidays), ability to accrue holidays with each year’s service and annual leave purchase scheme
- Enhanced maternity and paternity pay
- Private health insurance
- Enhanced sickness pay
- Free Parking
- 2 Corporate Social Responsibility days per year
- Generous staff allowance and discount
- Free fresh fruit, snacks and drinks in office
- Individual social fund
- Bi-Annual Paid team outings
- Regular pay reviews