Senior Software Engineer

Senior Software Engineer | Senior Engineer | Senior Full Stack Engineer 💰Up to £110,000 per annum 🏡Office based in Central North-West London, 2 days a week in office 💻TypeScript, Node.js, React.js. My client are a Series A–funded startup building a product-led platform used by customers across multiple international markets. Much of the work is zero-to-one, with engineers playing a key role in shaping both the product and the technical foundations as the company scales globally. The team works at pace, close to users, and on real-time data problems , making this a strong fit for senior engineers who enjoy ownership, ambiguity, and building meaningful products from the ground up. You’ll work end to end across the application, contributing to product discovery, feature development, and platform scalability. Engineers are deeply involved in product decisions and work closely with product and design to deliver high-impact functionality quickly and reliably. Responsibilities: Design and build product features across the full stack using TypeScript Develop backend services and real-time APIs using Node.js Build and maintain frontend applications using React Work closely with product and design on problem discovery and solution design Contribute to architectural decisions as the platform scales Help evolve a zero-to-one codebase into a robust, scalable system Requirements: Senior-level experience as a software engineer, ideally in a startup or scale-up Strong experience with TypeScript across frontend and backend Hands-on experience with React and Node.js Comfortable working on early-stage, ambiguous, zero-to-one problems Product-focused mindset with experience working close to users Based in or able to work from London What’s offered: Competitive salary and equity High ownership and influence on product direction Opportunity to work on real-time, data-driven systems Hybrid working and a growing engineering team If you’re a senior engineer looking for a hands-on, product-driven role in a high-growth start-up environment, please apply below. Senior Software Engineer | Senior Engineer | Senior Full Stack Engineer