Security Architect

· Lead the architecture, design, and implementation of endpoint security solutions across backend platforms.

· Design and deliver security capabilities for offline, air-gapped environments including secure update mechanisms.

· Define and implement vulnerability management frameworks covering scanning, risk prioritisation, and remediation.

· Ensure all solutions comply with MOD and UK Government security policies including JSP and NCSC guidance.

· Conduct security assurance activities including design reviews, compliance assessments, and audit support.

· Produce and maintain formal security documentation including HLDs, LLDs, SOPs, and accreditation evidence.

· Support MOD risk management and accreditation processes in line with governance requirements.

· Define penetration testing scope for both backend platforms and end-user endpoints.

Our client is looking for an experienced Security Architect with deep expertise in endpoint security and vulnerability management to support a high-profile UK Government defence account. You’ll be designing and delivering security capabilities within secure, air-gapped environments, so hands-on experience in offline network security is essential., · Demonstrable experience as a Security Architect or senior security SME in secure or regulated environments.

· Proven ability to design and deliver enterprise AV and Endpoint Detection and Response (EDR) solutions.

· Strong hands-on experience with vulnerability management platforms, lifecycle processes, and remediation reporting.

· Solid experience working in offline or air-gapped environments including secure patching and AV signature management.

· Working knowledge of MOD security standards including JSP 440, JSP 604, JSP 453, and NCSC guidance.

· Experience applying the NIST Cybersecurity Framework within platform and endpoint security design.

· Ability to produce formal technical documentation including HLDs, LLDs, security architecture docs, and SOPs.

· Experience supporting security accreditation, risk management, and compliance evidence generation for MOD programmes.

The client would also like to see some of the below, but this is not essential:

· Previous experience working within the Defence and/or Aerospace sector.

· Familiarity with classified or high-assurance government environments.

· Understanding of MOD operating models and delivery frameworks.

· Experience supporting incident response within restricted or disconnected networks.

· Flexible working arrangements.

· Provide expert financial guidance to help you select a pension plan tailored to your lifestyle.

· Company culture that places a premium on achieving a healthy work-life balance.

· Offer competitive bonuses and generous compensation packages.

· Prioritise traits such as curiosity and a good-natured sense of humour.

· Encourage and assist staff in participating in local community initiatives.

· 25 days holiday + bank holidays

· Buy/Sell holiday

· Death in Service - 3x salary

· Performance Bonus

· Cycle to work scheme

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