Frontend Software Engineer

Frontend Software Engineer

Department: Information Technology

Employment Type: Full Time

Location: Trimble Offices, Morley

At , we’re building the most trusted platform for pre-loved items. We help people give valuable things a new life, making the experience simple, transparent and rewarding.

We bring together specialist knowledge, thoughtful technology and genuine care for our customers. By helping more items stay in circulation, we create value for people and make a positive impact at the same time.

At , technology is how we scale our impact. Every part of the customer journey - from sending in pre-loved items to getting paid - is powered by the systems we design, the products we build and the data we unlock. Our Technology team is driving greenfield product development, testing fresh ideas and building modern, scalable platforms that set the standard for re-commerce.

You’ll join our web team, working alongside front-end engineers and our Software Engineer in Test, and reporting to the Lead Frontend Engineer. It's a team where curiosity meets craft: we blend creativity, technical excellence and a strong product mindset to create experiences that feel simple, rewarding and built to last.

We're looking for a hands-on Frontend Software Engineer who can own front-end craft and extend it end to end - from the interfaces our customers use to the Cloudflare Workers and light backend services that power them.

This is an individual contributor role with plenty of influence. You'll build with React and Type Script, work on API routes, integrations and edge logic using Cloudflare Workers, and help make AI-first, verify-second engineering the team's default.

You’ll partner with the Lead Frontend Engineer on architecture, with Product and Design on user experience, and with our Software Engineer in Test on quality. You'll set direction through the quality of your code, reviews and judgement, rather than through formal authority.

We're looking for someone who asks why, not just what. You'll be curious about our customers and commercial goals, challenge assumptions constructively and help us spot valuable opportunities before they arrive as tickets. This is a UK-based hybrid role, including time with the team in Leeds, and may include occasional travel to our European and other international locations as we grow.

• Ship polished, accessible and high-performing customer experiences built on strong React and Type Script foundations.
• Deliver features end to end, including the Cloudflare Workers, APIs and integrations behind the interface.
• Use AI tooling as a genuine development partner while checking, testing and improving every output before it ships.
• Build quality in from the start through testable code, unit and component coverage, and close partnership with our Software Engineer in Test.
• Raise the technical bar for front-end craft, edge architecture and full-stack judgement across the web team.
• Turn customer and business insight into better product decisions, not just completed tickets.

• Build and maintain customer-facing experiences. We currently use Astro and React, but prioritise selecting the right tool for each challenge over adherence to any single framework.
• Turn design intent into polished, resilient interfaces, partnering closely with Product and Design.
• Own responsive layouts, cross-browser compatibility and progressive enhancement across our brand portfolio.
• Build accessibility (WCAG), Core Web Vitals, component quality and sensible front-end caching into everyday engineering decisions.

• Deliver features end to end across our Cloudflare Workers stack—API routes, edge logic, integrations—using Wrangler, D1, KV and R2.
• Build and maintain integrations with forms, CRM and marketing tools such as Hub Spot, and headless CMS platforms such as Storyblok.
• Make sound architectural decisions on the edge platform, leveraging Cloudflare's caching, KV and CDN to keep our infrastructure lean.
• Consider internationalisation and localisation as our products and edge logic adapt for different markets.