About the Job Senior Fullstack Engineer (React / .Net) – London (Victoria) | Hybrid £80k - £110k Are you ready to craft the next generation of data-driven digital experiences for one of Europe’s most technically advanced SaaS innovators? Our client, a pioneer in B2B SaaS solutions, is building “Your Shipping Analytics Supercomputer”, providing cutting-edge data visualisation and dynamic dashboards for high-velocity business & artificial intelligence. About the Role As a Senior Full-stack Engineer, you’ll play a key role in architecting and developing scalable, high-performance web applications that bring complex data to life. Working across both frontend (React, TypeScript) and backend (.NET Core, C#) technologies, you’ll collaborate with product, design, and data science teams to create seamless, intelligent solutions that define the future of shipping analytics. This is a hands-on engineering role that combines deep technical problem-solving with creativity and collaboration, ideal for someone who thrives in fast-paced, high-growth environments. What You’ll Bring 5 years of experience building large-scale, production-grade web applications. Strong proficiency with React, TypeScript/JavaScript, HTML, and CSS. Proven experience with C#, .NET Core, and SQL-based databases. Understanding of Design Patterns and SOLID principles. Experience designing and consuming RESTful APIs. Familiarity with Azure or other cloud platforms and configuration management. Experience with Agile/SCRUM methodologies and modern CI/CD practices. Why Join? Bootstrapped success story - with multiple thriving business arms. An executive team with 65 years of collective experience in shipping management. Fresh from a £100m AI start-up exit, they’re focusing all their attention on this next big venture. This is an outstanding opportunity to design and deliver the front-end of a platform that’s redefining how businesses interact with data. If you’re a passionate engineer who loves solving complex problems through clean, intelligent design — let’s connect!