Role Overview
We are seeking a DV-cleared Infrastructure Engineer to support the design, build, integration, and maintenance of secure on-premise IT infrastructure within a Defence and National Security environment.
This is a hands-on contract role, working within highly secure systems and to hardened build standards, supporting mission-critical platforms and services.
Key Responsibilities
* Design, build, integrate, test, and maintain secure on-premise IT infrastructure solutions.
* Specify, deploy, and support Windows Server and Desktop environments, including repeatable operating system builds using Microsoft Deployment Toolkit (MDT) or equivalent tools.
* Implement hardware platforms and operating systems in line with hardened security build standards.
* Deliver Windows Server OS and Active Directory domain upgrades and migrations.
* Define, deploy, manage, and troubleshoot Microsoft Active Directory Group Policy.
* Implement, configure, and upgrade SAN storage solutions, including version migrations.
* Deploy and manage VMware virtualisation infrastructure.
* Integrate infrastructure with enterprise services such as:
o Monitoring and alerting tools
o Patch and update management platforms
o Anti-virus and endpoint security solutions
* Conduct vulnerability and compliance activities using recognised scanning tools.
* Design, build, and deploy Public Key Infrastructure (PKI) solutions.
* Produce and maintain High-Level Design (HLD) and Low-Level Design (LLD) documentation and detailed build guides.
Essential Skills & Experience
* Strong hands-on experience delivering infrastructure solutions in secure Defence or National Security environments.
* Proven experience working with:
o Windows Server & Desktop
o Microsoft Active Directory & Group Policy
o VMware virtualisation
o SAN storage technologies
* Experience implementing and operating systems to hardened build and security standards.
* Familiarity with vulnerability assessment and compliance scanning tools.
* Experience designing and deploying PKI infrastructure.
* Ability to produce clear, structured technical documentation.
* Active UKSV DV clearance (mandatory).
Additional Information
* Role is based in Hemel Hempstead; on-site attendance will be required in line with security constraints.
* Due to the nature of the work, only candidates with live DV clearance can be considered.
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