PWA Architect (Progressive Web Applications) - Nottingham- hybrid (Software Architect II)

We are seeking a highly experienced PWA Architect to lead the design and delivery of enterprise-grade Progressive Web Applications for high-traffic digital and eCommerce platforms. This role sits at the intersection of architecture, hands-on engineering, and technical leadership, with a strong emphasis on performance, scalability, and exceptional user experience.

You will define frontend architecture strategy, drive best-in-class PWA implementations, and act as a technical authority across product and engineering teams.

The Role:

• Own the architecture and delivery of scalable, high-performance Progressive Web Applications.
• Lead end-to-end PWA strategy across complex eCommerce ecosystems.
• Design and implement advanced service worker patterns for caching, offline capability, resilience, and performance optimisation.
• Build and oversee responsive, mobile-first user interfaces using modern frameworks such as React, Angular, or Vue.
• Drive seamless integration between PWA frontends and enterprise backend platforms, including Salesforce Commerce Cloud and MuleSoft.
• Champion performance excellence, optimising Core Web Vitals, load time, and runtime responsiveness.
• Enable app-like experiences through push notifications, offline journeys, and progressive enhancement.
• Ensure solutions meet high standards for cross-browser compatibility, accessibility (WCAG), SEO, and security.
• Lead root-cause analysis and resolution of complex frontend and performance issues.
• Provide technical leadership and mentorship, setting frontend architecture standards and enforcing best practices across teams.

• Minimum of 6+ years of frontend engineering experience, with deep expertise in Progressive Web Applications.
• Proven experience architecting and delivering enterprise-scale PWAs.
• Strong command of modern JavaScript frameworks and frontend tooling.
• Expert knowledge of service workers, caching strategies, and performance optimisation.
• Experience integrating with large-scale backend APIs and commerce platforms.
• Passion for clean architecture, code quality, and engineering excellence.
• Strong stakeholder communication skills and the ability to influence technical direction.

About UST UST is a global digital transformation solutions provider. For more than 20 years, UST has worked side by side with the world's best companies to make a real impact through transformation. Powered by technology, inspired by people and led by purpose, UST partners with their clients from design to operation. With deep domain expertise and a future-proof philosophy, UST embeds innovation and agility into their clients' organizations. With over 30,000 employees in 30 countries, UST builds for boundless impact-touching billions of lives in the process.