Salary: £70,000 - 70,000 per year Requirements: Strong Windows Server experience Excellent troubleshooting ability Confidence investigating issues properly using tools such as event logs Understanding of Active Directory, Group Policy, replication, certificates and wider infrastructure dependencies Experience across one or more of the following would be useful: VMware, Hyper-V or Azure Local Experience across one or more of the following would be useful: Citrix, SCCM / MECM, Exchange, Thycotic, Zabbix or other enterprise monitoring tools Experience working in agile environments would be useful Ability to travel within Europe without restriction when required Responsibilities: Lead troubleshooting across Windows Server environments Act as our senior escalation point for complex infrastructure issues Support projects involving virtualisation and hyper-converged infrastructure Contribute to our move from VMware towards Azure Local Work across server, storage, file, email and collaboration systems Help define technical priorities, improvements and roadmap activity Mentor other IT Administrators within our team Support security, resilience, capacity and regulatory requirements Research new technologies and recommend practical, cost-effective solutions Technologies: Active Directory Azure Citrix Hyper-V Support Security VMware Windows Zabbix Cloud LESS Ruby More: We are a global technology business with a sizeable, established technology environment. We are hiring a Senior Windows Server Administrator to be our go-to escalation point for complex Wintel infrastructure issues. This is a hands-on, office-based role in Southampton, working on deep technical troubleshooting rather than routine runbook tasks. Current work includes a move from VMware towards Azure Local, alongside wider infrastructure integration across newly acquired sites. We offer a strong benefits package including up to 26 days holiday plus bank holidays, additional birthday and work anniversary days after probation, a 5% employer pension contribution, employee share purchase scheme, private medical cover, healthcare cash plan, Digital GP access, life assurance, income protection and critical illness cover. The interview process is two stages: an initial 30-45 minute Teams call, followed by an onsite interview in Southampton. last updated 24 week of 2026