Salary: £70,000 - 85,000 per year Requirements: 5 years of C# WPF/XAML engineering experience Strong experience with MVVM, DI, and modular UI architecture Experience with real-time or streamed data in a desktop GUI Familiarity with N-tier and message-based architecture Eligible for SC security clearance A degree in Software Engineering or a related discipline is preferred Responsibilities: Own the front-end for a new Integrated Maritime Management System built from scratch Build modular, reusable WPF components for a data-rich desktop application Create clean, performant GUIs for different display systems in naval environments Work from wireframes supplied by our design lead Integrate real-time data streams into the user interface Contribute to a greenfield C# / WPF / XAML solution using modern modular front-end patterns Technologies: C# MVVM Security WPF UX UI Design Flow SignalR Visual Studio gRPC More: We are a well-established international maritime technology company building a brand new Integrated Maritime Management System from scratch in Waterlooville. Our product is deployed on military vessels around the world, and this is a rare greenfield opportunity with a serious engineering challenge. We are based onsite in Portsmouth in a circa 30-person office, offering an up to £85,000 salary plus benefits, and a 4- or 5-day working week with start and finish flexibility. Early hires will have a clear opportunity to grow into team lead roles as the UK team expands. last updated 24 week of 2026