Job Title: Windows and Linux Infrastructure EngineerClearance Type: Active SC ClearanceLocation: Hybrid - Cirencester, Gloucestershire (mostly remote and expenses for all site travel)Day Rate: £340 per day - payable to Limited Company / Outside IR35Duration: 12 months initially Pay Frequency: WeeklyStart Date: ASAPOverview We are looking for experienced SC Cleared Infrastructure Engineers / 3rd Line Server Engineers to support a large-scale Windows and Linux server migration. This is a hands-on Infrastructure Engineer role focused on server configuration, validating automation, troubleshooting issues, and supporting the new environment post-migration.Key ResponsibilitiesSupport migration of Windows and Linux servers to a new environmentValidate automated migrations (Quest) and resolve any failures manuallyMigrate core services including Active Directory, DNS, file systems, and storageTroubleshoot and resolve OS-level and migration issuesSupport application teams with integration and post-migration stabilisationConfigure environments for high availability, patching, backup, and monitoringIdentify risks, gaps, and dependencies across the environmentSupport separation activities and ensure production readinessMaintain documentation and contribute to knowledge transferRequirementsPrevious experience as an Infrastructure Engineer or 3rd Line Server EngineerActive SC ClearanceStrong Windows Server skills - Active Directory, DNS, GPOStrong Linux administration skills - RHEL/CentOS/U