TECHNICAL ARCHITECT Technical Architect Data Platform AWS and Azure Brownfield Modernisation£510 per day via Umbrella Contract until 31/12/2026Remote (occasional travel to London, Manchester, Birmingham or Newcastle)Active SC Clearance Required (ideally used within last 6 months) ABOUT THE CLIENT Our client is undertaking the architectural modernisation of a large-scale, established data platform within a highly regulated government environment. This programme focuses on reshaping an existing brownfield data warehouse platform to align with enterprise standards, enable microservice-based upstream integration, and support secure multi-cloud connectivity - all while maintaining uninterrupted live service delivery. THE TECHNICAL ARCHITECT ROLE As Technical Architect, you will lead the architectural modernisation of a large-scale data platform, working within a complex brownfield environment. You will be responsible for re-architecting data flows, managing schema evolution (300+ schemas), defining data migration strategies, and enabling secure connectivity between AWS-hosted services and Azure-based enterprise environments. You will provide senior technical authority across architecture, infrastructure, security, and governance - ensuring alignment with organisational standards while maintaining continuity of critical live services. This role requires strong hands-on capability, multi-cloud expertise, and the confidence to operate as architectural lead across multiple technical