3 of 3 Lead Security Architect Jobs in Portsmouth

Lead Security Architect (Defence DevSecOps and AI/ML) Location: Portsmouth | Hybrid 50% and 50% Duration: 23/11/2026 MUST BE PAYE THROUGH UMBRELLA Title: Lead Security Architect (Defence DevSecOps and AI/ML) Mission: Own security architecture and the integration … code promotions with repeatable assurance. Manage the Secure by Design elements of the project and own the assurance process end to end. Key Responsibilities Lead the Security elements of the program across different use cases for AI/ML development and trials. Chair Security Working groups ...

seeking an experienced SC Cleared Lead Security Architect to join a high-profile Defence and National Security programme focused on secure AI/ML adoption, multi-cloud platforms, DevSecOps, and edge computing environments. This is a strategic leadership role where you will own security architecture … assurance, and governance across complex cloud and AI-enabled solutions, supporting secure collaboration across multiple stakeholders and international partners. Key Responsibilities Lead security architecture across AI/ML, cloud, edge, and DevSecOps environments. Define secure-by-design principles and drive assurance activities end-to-end. Conduct threat modelling ...

Role Title: Lead Security Architect Duration: contract to run until 23/11/2026 Location: Portsmouth. Hybrid 2-3 days per week onsite Rate: up to £616 p/d Umbrella inside IR35 Clearance required: Active DV Clearance and Sole UK National Role purpose/summary … Mission: Own security architecture and the integration roadmap for AI/ML across multi-cloud and edge; align to client IT/cloud strategy and UK Defence priorities; enable secure multinational collaboration and high-side code promotions with repeatable assurance. Manage the Secure by Design elements of the project ...