Salary: £50,000 - 70,000 per year Requirements: Strong Windows Server experience Excellent troubleshooting ability Confidence investigating issues using tools such as event logs Understanding of Active Directory, Group Policy, replication, certificates, and wider infrastructure dependencies Experience with any of the following is useful: VMware, Hyper-V or Azure Local, Citrix, SCCM / MECM, Exchange, Thycotic, Zabbix or other enterprise monitoring tools, Agile working environments 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 the move from VMware towards Azure Local Work across server, storage, file, email, and collaboration technologies 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 offering a Senior Windows Server Administrator role based in Southampton and working from the office. You will join a sizeable, established technology environment with current projects including a move from VMware towards Azure Local and wider infrastructure integration across newly acquired sites. We offer a salary of £50,000 - £70,000 plus benefits, including up to 26 days holiday plus bank holidays, additional birthday and work anniversary celebration days after probation, 5% employer pension contribution, employee share purchase scheme with discounted shares, private medical, healthcare cash plan and Digital GP access, and 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