Principal Software Engineer
Luton
12-Month Contract
Paying up to £79p/h (Inside IR35)
Please note - due to the nature of the work, you will need to hold or be eligible to obtain a high level of UK Security clearance – please only apply if suitable
Key Responsibilities:
* Develop robust applications using C# .NET within a Windows environment.
* Take ownership of complex tasks across the full software lifecycle—from requirements to integration, testing, and delivery.
* Apply object-oriented design principles and verification/validation techniques.
* Collaborate with a skilled team while maintaining independence in your work.
Required Skillset:
* Proven experience in C# .NET development, including web-based applications.
* Strong understanding of object-oriented design and software development methodologies.
* Experience across the full software lifecycle, including automated testing frameworks and practices.
* Experience with Continuous Integration / Continuous Delivery (CI / CD) practices.
* Ability to work independently and deliver high-quality solutions with minimal supervision.
* Experience with Agile methodologies (Scrum, Kanban) and microservices architecture.
* Experience with DOORS, Cameo, and Azure DevOps.
* Defence or Electronic Warfare domain experience – desirable
* Familiarity with frameworks/tools such as WPF, WinForms, and Visual Studio.