Salary: £78,000 - 78,000 per year Requirements: Proficient in C# Experience with C++ (not overly extensive) Familiarity with Microsoft Visual Studio and Eclipse Ability to transition from high-level/system views into technical detail Knowledge of Microsoft Windows and Linux operating systems Understanding of distributed simulation standards/protocols (DIS, HLA, DDS) and web services development (JavaScript, Node JS or similar) Experience with military communications, datalinks, and interfaces such as 1553/1760 and Ethernet TCP/IP (non-essential) Practical knowledge of system integration principles and processes (non-essential) Responsibilities: Support the development of advanced defense systems from initial concept to in-service support and training Work collaboratively with Project Leads and Simulation Architects to design and develop simulation components Integrate real products, models, and synthetic environments for visualizations, demonstrations, verification, and validation Participate in a heterogeneous agile development team to build simulations and representations of real equipment Implement configuration control, continuous integration, continuous delivery, and deployment practices Conduct unit testing and apply test-driven development techniques Technologies: C# Eclipse Ethernet Support JavaScript Linux TCP/IP Visual Studio Web Windows NodeJS C++ TDD More: We are a world-class defense organization, currently seeking to recruit 5 C# / C++ Software Engineer subcontractors for an initial 12-month contract. This role offers a competitive rate of £65.00 per hour, with overtime available at time and a quarter for hours worked over 37 per week. The positions are based in either Stevenage or Bristol, offering a hybrid work model requiring 3 or 4 days per week onsite. Our team plays an integral role in developing weapon systems and system architectures, working on simulation technologies including digital twins and emulators. We are committed to continuous improvement and look forward to adding talented individuals to our dynamic team. last updated 16 week of 2026