C# Software EngineerLocation: Stevenage, UKContract: 12 monthsRate: £49.70/hour PAYE (£56.93/hour incl. holiday) or £65/hour UmbrellaWe seek an engineer with recent high-integrity or safety-critical industry experience (defence, aerospace, or similar), or eligible for UK security clearance.Overview: Contribute to the development of advanced defence systems across the full product life cycle, from concept through to in-service support. The role focuses on creating and integrating simulation components, digital twins, and emulators that accurately represent weapon systems within synthetic environments.Responsibilities: Design, develop, and integrate simulation software using C# and C++.Collaborate with project leads and architects to deliver complete system representations.Implement configuration control, continuous integration, and test-driven development practices.Work within an agile, multidisciplinary team to deliver validated simulation solutions.Support activities such as system integration, verification, validation, and training. Essential Skills: Proficiency in C# and C++.Experience with Microsoft Visual Studio or Eclipse.Strong analytical ability to translate system-level concepts into technical detail.Competent with Windows and Linux operating systems.Excellent written, verbal, and presentation skills. Desirable Skills: Familiarity with distributed simulation standards (DIS, HLA, DDS).Experience developing web services (JavaScript, Node.js or similar).Knowledge of mil