Security-Cleared Principal C# .NET Engineer (Contract)

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ARM is seeking a Principal Software Engineer to join their team in Luton on a 12-month contract. You will develop robust applications using C# .NET within a Windows environment and take ownership of complex tasks across the full software lifecycle.

Ideal candidates should have experience with Agile methodologies and a strong understanding of object-oriented design. The role demands high-level UK Security clearance and offers competitive pay up to £79p/h (Inside IR35).

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Company: ARM
Apply for the Security-Cleared Principal C# .NET Engineer (Contract)
Location: Caddington
Job Description:

ARM is seeking a Principal Software Engineer to join their team in Luton on a 12-month contract. You will develop robust applications using C# .NET within a Windows environment and take ownership of complex tasks across the full software lifecycle.

Ideal candidates should have experience with Agile methodologies and a strong understanding of object-oriented design. The role demands high-level UK Security clearance and offers competitive pay up to £79p/h (Inside IR35).

#J-18808-Ljbffr…

Posted: May 21st, 2026