Senior Software Engineer - UI / GUI (C# WPF / XAML)Portsmouth, Hampshire Up to 85,000 + Benefits Onsite 4 or 5 day working week Some projects are maintenance. Some are migrations. And then something genuinely rare comes along - a blank canvas, a serious engineering challenge, and a product deployed on military vessels around the world.A well-established international maritime technology company is building a brand new Integrated Maritime Management System (IMMS) from scratch in Waterlooville. The pace is real - there''s a client demo in January. You''ll be among the first engineers into the UK team, with a clear expectation that early hires grow into team lead roles. The RoleYou''ll own the front-end - building modular, reusable WPF components for a data-rich desktop application that runs across different display systems in naval environments. Working from wireframes supplied by a Canadian design lead, you''ll create clean, performant GUIs fed by real-time data streams. Technically demanding, purposeful, and built for real-world deployment. StackC# / WPF / XAML - greenfield from scratchMVVM, DI, Data Templates, Styling - modular composable front-endSignalR, gRPC, Pub/Sub, Data Flow TPL - real-time data integrationVisual Studio Nice-to-have: Managed C++, server-side C# / ORM What We''re Looking For5+ years C# WPF/XAML engineering experienceStrong MVVM, DI, and modular UI architectureExperience with real-time or streamed data in a desktop GUIN-tier and message-based architectur