Security Architect Duration: 12 months Location: Hybrid / 1 day PW on-site in Croydon Umbrella Only Due to the urgency and sensitivity of the work, active SC Clearance is mandatory. Responsibilities As a Security Architect, you will: Design and implement secure architectures across applications, platforms, and infrastructure Define and apply security architecture patterns, including Zero Trust and defence-in-depth strategies Lead security design for cloud-based solutions (AWS, Azure, and/or GCP) Architect and govern identity and access management (IAM), including authentication, authorisation, and privileged access Design secure network architectures covering encryption, key management, and secure connectivity Embed application security principles, including secure APIs, data protection, and threat modelling Ensure systems are designed for security resilience, availability, and risk mitigation Collaborate with engineering, platform, and delivery teams to embed security across the lifecycle Must-Have Skills & Experience Proven experience working as a Security Architect in complex environments Strong expertise in secure architecture design across enterprise systems Solid understanding of Zero Trust, defence-in-depth, and modern security patterns Hands-on experience designing security for cloud platforms (AWS, Azure, and/or GCP) Deep knowledge of IAM, authentication, authorisation, and privi...