Ruby on Rails Developer

<p><strong>Company Description</strong></p><p>Materials Market is a managed marketplace for bulky construction materials. We’re fixing a fragmented, opaque market where pricing is political and access is unequal — building a fair, transparent system where customers and suppliers trade on equal terms.</p><p><br><br>Scroll down to find an indepth overview of this job, and what is expected of candidates Make an application by clicking on the Apply button.<br></p><p>We turn a network of merchants and distributors into one simple way to buy heavy, first-fix materials. Customers — from DIYers to tradespeople — get competitive, market-informed prices and reliable delivery through a single platform. Suppliers keep control, choosing the orders that suit their branches, fleets and margins.</p><p><br></p><p>We’re backed by Fuel Ventures and Active Partners, alongside a strong group of angel investors. Our board includes James Mackenzie (former Managing Director of Travis Perkins) and Thomas Studd (former Partner at Vitruvian Partners).</p><p><br></p><p><strong>Role Description</strong></p><p>We’re hiring a Ruby on Rails Developer to join a small, high-performing team and ship product changes end-to-end. You’ll work in a Rails codebase, building features across backend and frontend as needed, partnering closely with non-technical teams, and owning delivery, quality, and outcomes.</p><p>We run lean, with minimal ceremony and a meeting-light culture (no daily stand-ups). You’ll have autonomy, direct access to leadership, and real ownership of what ships.</p><p><br></p><p><strong>What you’ll do</strong></p><ul><li>Build and ship features in a Ruby on Rails monolith.</li><li>Contribute towards both new feature development and green-field rebuilds of core parts of our platform.</li><li>Deliver work end-to-end: from business problem → solution design → development → release.</li><li>Debug issues, improve reliability, and raise code quality.</li><li>Work pragmatically across the stack (Ruby, JavaScript, CSS, SQL).</li><li>Use AI-assisted / agentic development tools to write and review code, while maintaining high quality.</li></ul><p><br></p><p><strong>Must haves</strong></p><ul><li>Strong Ruby and Ruby on Rails experience with evidence of shipping production work.</li><li>Full-stack mindset; backend leaning.</li><li>Comfortable working with ambiguity and making pragmatic decisions.</li><li>Practical experience with AI-assisted development tools.</li></ul><p><br></p><p><strong>Nice to haves</strong></p><ul><li>Architecture experience.</li><li>CI/CD experience.</li><li>Infrastructure / DevOps exposure.</li></ul><p><br></p><p><strong>Working pattern & location</strong></p><ul><li>Fully remote, flexible working hours, focused on output.</li><li>Quarterly in-person two-day hacks. xwzovoh </li><li>Occasional attendance in London office encouraged.</li></ul>