Full-Stack Developer (C# / React) London | Hybrid (3 days per week) | £80,000 to £90,000 base bonus Ncounter are supporting a high-performing technology team as they expand their web engineering capability and continue to modernise the platforms that power real-time digital marketplaces. We’re looking for experienced Full-Stack Developers who enjoy variety, technical challenge, and building well-structured software that others can depend on. You’ll work within a cross-functional engineering group that takes real pride in collaboration and code quality. The role involves building high-performance, event-driven applications, with a focus on reliability, modularity, and scalability across both front-end and back-end services. In the role you will: • Build and enhance web applications using C# (.NET 8) and React with TypeScript • Design reusable components and frameworks to accelerate product delivery • Collaborate closely with other engineers to define solutions and solve complex technical challenges • Contribute to peer reviews, documentation, and mentoring within the team • Take ownership of quality, testing, and continuous delivery improvements We’re looking for: • Strong hands-on experience across modern web technologies and frameworks • Proficiency in C# or an equivalent object-oriented language, plus React or similar JavaScript frameworks • A genuine interest in clean code, developer experience, and team-wide collaboration • Someone curious, pragmatic, and motivated to deliver maintainable, high-quality systems This is a rare opportunity to join a team that balances engineering rigour with creative freedom. Expect an environment that encourages experimentation, technical growth, and knowledge sharing-alongside regular hackathons, socials, and a positive, open culture. If you’re an engineer who values both autonomy and teamwork, and want your code to make a visible impact, we’d love to speak with you. Apply today or get in touch for a confidential chat