About this role
Salary: £60,000 - 70,000 per year
Requirements: Active Developed Vetting (DV) clearance that is current and transferableProven experience in a 2nd/3rd line infrastructure support or engineering roleStrong Wintel infrastructure support experience within enterprise environmentsIn-depth knowledge of Windows Server 2016, 2019, or 2022In-depth knowledge of Active Directory, Group Policy, DNS, and DHCPIn-depth knowledge of VMware vSphere / ESXiExcellent troubleshooting and diagnostic skills across core infrastructure technologiesExperience working within secure, enterprise, government, or defence environmentsAbility to work full-time onsite in LondonPowerShell scripting and automation experience is desirableExperience with backup and recovery solutions is desirableKnowledge of infrastructure monitoring tools such as SCOM or equivalent is desirableExposure to highly secure, classified, or air-gapped environments is desirableExperience supporting mission-critical systems and services is desirable Responsibilities: Provide 2nd and 3rd line support for Windows-based infrastructure and core servicesAdminister and support Active Directory environments, including Group Policy, DNS, DHCP, and user/device managementSupport and maintain VMware virtualised infrastructure environmentsInvestigate, troubleshoot, and resolve complex infrastructure incidents and problemsPerform system patching, upgrades, maintenance, and lifecycle management activitiesImplement and maintain security best practices within a highly regulated environmentCreate and maintain technical documentation, support procedures, and operational runbooksWork closely with infrastructure, network, and security teams to support business-critical servicesContribute to continuous improvement initiatives and infrastructure optimisation projectsParticipate in technical escalations and provide support for major incidents when required Technologies: Active DirectorySupportNetworkPowerShellSecurityVMwareWindowsDevOps More:
We are seeking an experienced DV Cleared 2nd/3rd Line Infrastructure Engineer to join our highly secure and mission-critical team in London. This is a full-time, 100% onsite role supporting enterprise Wintel infrastructure in a complex, high-security environment. We offer a competitive salary of £60,000 to £70,000 plus bonus, along with the opportunity to work on nationally important systems in a collaborative and technically challenging setting.
last updated 29 week of 2026