Job Description

Principal Software Engineer in Luton, Bedfordshire

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Location

Luton, Bedfordshire

Salary

Negotiable

Contract

Contract

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 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, Visual Studio.

Disclaimer

This vacancy is being advertised by either Advanced Resource Managers Limited, Advanced Resource Managers IT Limited or Advanced Resource Managers Engineering Limited ("ARM"). ARM is a specialist talent acquisition and management consultancy. We provide technical contingency recruitment and a portfolio of more complex resource solutions. Our specialist recruitment divisions cover the entire technical arena, including some of the most economically and strategically important industries in the UK and the world today. We will never send your CV without your permission. Where the role is marked as Outside IR35 in the advertisement this is subject to receipt of a final Status Determination Statement from the end Client and may be subject to change.

Job reference 128743_1779110215
Date posted 18 May 2026

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Matthew Brindley

Matthew Brindley

Senior Account Consultant

+ 44 (0)2392 228 200

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