Job Title: Windows & Linux Infrastructure EngineerClearance Type: Active SC ClearanceLocation: Hybrid - Cirencester, Gloucestershire (mostly remote & 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 & 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 Responsibilities
Support migration of Windows & Linux servers to a new environment
Validate automated migrations (Quest) and resolve any failures manually
Migrate core services including Active Directory, DNS, file systems, and storage
Troubleshoot and resolve OS-level and migration issues
Support application teams with integration and post-migration stabilisation
Configure environments for high availability, patching, backup, and monitoring
Identify risks, gaps, and dependencies across the environment
Support separation activities and ensure production readiness
Maintain documentation and contribute to knowledge transfer
Requirements
Previous experience as an Infrastructure Engineer or 3rd Line Server Engineer
Active SC Clearance
Strong Windows Server skills - Active Directory, DNS, GPO
Strong Linux administration skills - RHEL/CentOS/Ubuntu
Proven large-scale migration experience
Experience with automation tools (e.g. Quest)
Knowledge of HA, backup, monitoring, performance tuning
Strong troubleshooting and problem-solving skills
Able to validate and challenge automation
Confident working with application teams and stakeholders
