Salesforce PWA e-commerce Architect at UST, Nottingham, £Contract Rate

PWA Architect (Progressive Web Applications)

Contract – Inside IR35 / Fixed-Term Employment

Nottingham (Hybrid – 3 days per week onsite)

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.

What you will bring:

• 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.