Job Vacancy Senior Infrastructure Engineer

You will join a small, highly skilled team of Infrastructure and DevOps Engineers responsible for maintaining a secure private cloud platform and its supporting infrastructure. As a senior member of the team, you will take ownership of technical delivery across project and operational activities, ensuring the platform remains secure, resilient and fit for mission-critical defence workloads. This role offers the opportunity to influence technical decisions, collaborate with architects and stakeholders, and contribute to the evolution of a strategically important capability.



The environment is predominantly Microsoft-based, with a growing Red Hat/Rocky Linux estate, running on Azure Stack Hub private cloud. You will apply your expertise across Windows Server, Active Directory, Group Policy, virtualisation and infrastructure automation while helping to strengthen security, improve operational efficiency and support continuous platform enhancements.



Key responsibilities:



• Design & deliver secure on-premises infrastructure solutions



• Build & Configure Windows servers, desktops, Hyper-V virtualisation and supporting

infrastructure services



• Administer & Optimise Active Directory, Group Policy and Microsoft infrastructure technologies



• Automate & improve operational processes using PowerShell, Ansible, Terraform or similar tools



• Implement & Support PKI services and infrastructure security controls



• Harden & Secure environments in line with defence security standards



• Test & Validate infrastructure components against operational and technical requirements



• Collaborate & Advise architects, project teams, vendors and key stakeholders



• Create & Maintain technical documentation, standards and implementation guides



• Troubleshoot & Resolve complex infrastructure and platform issues



• Contribute & Influence infrastructure strategy, platform improvements and technology roadmaps

Required qualifications to be successful in this role

To succeed in this role, you will have strong experience delivering and supporting enterprise Wintel infrastructure within secure or complex environments. You will be confident working across Microsoft technologies, infrastructure automation and security hardening, while demonstrating a proactive approach to technical ownership, problem solving and collaboration. Experience within Defence or other highly regulated environments would be advantageous.



Essential qualifications and experience:



• Extensive experience in Wintel infrastructure engineering



• Strong expertise administering Active Directory and Group Policy



• Proven experience managing Microsoft Hyper-V environments



• Experience with PowerShell scripting and/or infrastructure automation using Ansible or Terraform



• Experience implementing and supporting Public Key Infrastructure (PKI)



• Strong understanding of infrastructure security hardening principles



• Excellent troubleshooting, documentation and stakeholder engagement skills



Desirable qualifications and experience:



• Experience administering Linux environments (Red Hat and/or Rocky Linux)



• Azure Stack Hub (Private Cloud) experience



• Network design and WAN infrastructure experience



• Previous experience within the Defence sector



• Understanding of hybrid cloud and on-premises cloud environments







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