Principal Software Engineer
ARM • Luton, Bedfordshire • Posted June 03, 2026
About the Role
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 of Continu...
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 of Continu...