Principal Security Architect – Defence, Secure by Design

Frontier Resourcing is seeking a Principal Security Architect for defence clients in the UK. You will lead security architecture across complex IT lifecycles, balancing design and live service delivery while ensuring Secure by Design outcomes.

You will engage with business leaders and stakeholders, run workshops, and translate requirements into robust architecture with TOGAF/Archimate familiarity and a strong risk-focused mindset. A high level security clearance is preferred.

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