Infrastructure Engineer - SC Cleared

Infrastructure Engineer - SC Cleared - Hybrid - £80,000 We're seeking a versatile Infrastructure Engineer with strong experience across modern platforms, virtualisation, cloud services, and secure environments. If you enjoy solving complex technical challenges and working hands-on with a broad technology stack, this role offers the opportunity to make real impact in a high-assurance setting. Strong background in: * Windows Server (2016+) administration * RedHat OpenShift * Linux distributions (CentOS/RedHat/Ubuntu) * End-user device provisioning and hardening (eg, Autopilot) * Single Sign-On concepts and operations * Working within protectively marked or secure environments * VMware technologies * Microsoft Azure * General networking fundamentals * Automation and Scripting (PowerShell, Ansible) Experience with any of the following is a major advantage: * Kubernetes administration (eg, VMware TKGI) * vSphere, vCenter, VCF * Azure or Microsoft 365 administration * DevSecOps tooling and pipelines * Nessus or similar security scanning tools * Infrastructure-as-code tools (Terraform, Vault) * Agile sprint-based environments Typical Responsibilities: * Maintain, enhance, and secure multi-classification virtualised environments * Support the development and adoption of Secure-by-Design infrastructure approaches * Assist in the delivery and support of cloud SaaS platforms and project-specific cloud systems * Execute infrastructure maintenance through change control processes * Monitor and manage alerting, ticketing, and incident response workflows * Identify, diagnose, and act on system alerts and performance issues * Ensure all systems remain patched and compliant with security policy * Assess incidents quickly, drive service restoration, and track follow-up actions * Analyse trends to improve system reliability and performance * Stay current with emerging cloud, virtualisation, and security technologies * Provide guidance and technical support to teams and stakeholders * Document processes, share knowledge, and support business growth activities Security Clearance Due to the nature of the work, candidates must be UK sole nationals and hold UK Security Clearance