Salary: £30,000 - 55,000 per year Requirements: Active security clearance Strong background in Enterprise Architecture Extensive experience in developing Enterprise Architectural strategies Experience leading design authorities and implementing architectural governance Proven track record in leading enterprise architecture for large-scale cloud hosting, specifically in Azure and GCP Experience in high-security government Tier 2 environments In-depth knowledge of cloud architecture, including IAM, identity federation, cryptography, network segmentation, and high-assurance gateways Proven ability to lead enterprise design across all domains, including Data, Digital, Security, and Technical areas Proficiency in Secure by Design principles and IT security documentation Demonstrable knowledge of cybersecurity frameworks and standards, including the NCSC Cyber Assessment Framework, ISO 27001, NIST, COBIT, SABSA, and TOGAF Responsibilities: Develop and implement Enterprise Architectural strategies Lead design authorities and establish architectural governance Oversee enterprise architecture for large-scale cloud hosting on Azure and GCP Ensure compliance within high-security government Tier 2 environments Design and manage cloud architecture components including IAM, identity federation, and cryptographic systems Lead enterprise design initiatives across Data, Digital, Security, and Technical domains Create and maintain IT security documentation, including policies and standards Collaborate with teams to ensure Secure by Design principles are integrated into architecture practices Stay updated on cybersecurity frameworks and standards to inform architecture decisions Technologies: Architect Azure Cloud Cryptography GCP IAM Network Security TOGAF More: We at Summer-Browning Associates are supporting our central government client in London as they seek a qualified Enterprise Architect for an initial 12-month contract assignment with the potential for extension. We provide a challenging opportunity in a high-security environment, offering a chance to work with cutting-edge technology while making a significant impact on government operations. last updated 11 week of 2026