Salary: £30,000 - 40,000 per year Requirements: Functional knowledge within Microsoft Windows Server, including Active Directory Administration and Group Policy Management Functional knowledge within Microsoft Windows Functional knowledge within Microsoft SharePoint Server Functional knowledge within Microsoft Exchange Server Functional knowledge within Microsoft SQL Server Functional knowledge within Microsoft Skype for Business Server Network Fundamentals: IP addressing, VLANs, and Firewall Policies (Desirable) Experience with Backup and Replication technologies (Desirable) Experience with Network monitoring and syslog capabilities (Desirable) Experience with Automated client deployment technologies (Desirable) Experience with Layer 3 routing and networking protocols (Desirable) Functional knowledge within VMware ESXi Virtualisation, including VM Management and HA clustering Responsibilities: Administer and maintain the infrastructure, including both permanent and deployable nodes at MOD Southwick Park, Portsmouth Collaborate closely with the Training Support team to ensure systems remain available and secure for experimentation and wargaming activities Maintain permanent and deployable infrastructure to support wargaming and experimentation activities Perform patching, license management, and configuration alignment Provide remote testing access while coordinating with on-site CIS staff to keep services running smoothly Travel occasionally to other customer or MASS locations as required Technologies: Active Directory Firewall Support Network SQL Security SharePoint VMware Windows More: We are part of the Digital Services Group (DSG), a diverse business unit that provides a full spectrum of digital capabilities and supports technological requirements in the most secure settings. Our team plays a significant role in national security initiatives for the UK and its strategic partners globally. We offer a competitive salary of £30,000 - £40,000 DOE, 25 days of annual leave (including a December shut-down), pension schemes, private medical and dental insurance, life assurance, various savings schemes, and continuous professional development support. We prioritize employee wellbeing and provide mental health support and an extensive employee assistance program. You will primarily work on-site at Southwick Park, with occasional travel. last updated 5 week of 2026