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Senior Software Engineer

Job in Belfast, County Antrim, BT1, Northern Ireland, UK
Listing for: Spectrum It Recruitment Limited
Full Time position
Listed on 2026-06-16
Job specializations:
  • Software Development
    Software Engineer, Senior Developer, C# / Unity Developer
Salary/Wage Range or Industry Benchmark: 85000 GBP Yearly GBP 85000.00 YEAR
Job Description & How to Apply Below
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 Role You'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. Stack C# / WPF / XAML - greenfield from scratch MVVM, DI, Data Templates, Styling - modular composable front-end Signal

R, gRPC, Pub/Sub, Data Flow TPL - real-time data integration Visual Studio | Nice-to-have:
Managed C++, server-side C# / ORM What We're Looking For 5 years C# WPF/XAML engineering experience Strong MVVM, DI, and modular UI architecture

Experience with real-time or streamed data in a desktop GUI N-tier and message-based architecture familiarity Eligible for SC security clearance Onsite in Portsmouth (circa 30-person office). 40 hours over 4 or 5 days with start/finish flexibility. Degree in Software Engineering or related discipline preferred. Interested? This role is being managed exclusively by Spectrum IT Recruitment. Contact Daniel Sumpter, Senior Consultant, Spectrum IT Recruitment (South) Limited is acting as an Employment Agency in relation to this vacancy.
Position Requirements
10+ Years work experience
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