We are supporting a leading global technology services organisation on a high-profile UK Government programme and are looking for an experienced DV Cleared Security Architect to join a specialist team delivering security architecture and assurance within highly secure, mission-critical environments. This is an exciting opportunity for a security professional with expertise in platform security, endpoint protection, vulnerability management and secure infrastructure design to work on a complex programme supporting defence-critical systems. The Role As the Security Architect, you will lead the design, implementation and assurance of security controls across Back End platforms and endpoint environments operating within secure, offline (air-gapped) networks. Working closely with infrastructure, platform and security teams, you will ensure solutions meet UK Government and MOD security standards while supporting security accreditation and operational assurance activities. Key Responsibilities Lead the architecture and design of enterprise security solutions. Design platform security controls aligned to NIST Cybersecurity Framework and MOD security policies. Deliver enterprise Anti-Virus, Endpoint Protection and Endpoint Detection andamp; Response (EDR) capabilities. Design vulnerability management frameworks, scanning strategies and remediation processes. Develop secure patching, update and threat intelligence processes for air-gapped environments. Produce High Level Designs ..... full job details .....