Defence AI/ML Security Architect – Hybrid, SC/DV

Company: CBSbutler Holdings Limited trading as CBSbutler
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Job Description:

CBSbutler Holdings Limited trading as CBSbutler is seeking an experienced Security Architect to shape secure AI and cloud technologies within the UK Defence sector. This role requires leading the security architecture for a high-profile defence programme, ensuring security is woven throughout the programme lifecycle.

The ideal candidate will possess strong background in cloud security, have experience with Secure by Design principles, and need to hold active SC or DV clearance. This is a contract position based in Portsmouth with a hybrid work model.

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Posted: July 1st, 2026