Infrastructure Engineer

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