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

ARM

📍 caddington, england, United-Kingdom 💼 Full-time 🕒 Posted June 08, 2026

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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). 
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Job Details

Location caddington, england
Job Type Full-time
Category IT & Technology
Posted Date June 08, 2026
Application Deadline July 18, 2026