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, inclu...