Senior Software Developer – Defence & Security Lead

Company: Ecm Selection
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Job Description:

Ecm Selection in Surrey is seeking a Senior Software Developer to join a defence-focused engineering team, developing advanced C/C++ software for real-world defence and security systems.

You will work on sensor and signal processing projects, mentor junior engineers, and collaborate with hardware teams; UK DV clearance eligibility and British citizenship required.

The role is office-based with flexible hours and offers a competitive salary plus benefits.

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Posted: September 15th, 2026