Server Systems Administrator

Salary: £47,000 - 55,000 per year

Requirements:

• Proven experience administering Linux and Windows servers in an environment where uptime, availability and reliability are critical.
• Experience with virtualisation technologies, ideally Proxmox, together with a good understanding of server infrastructure and data centre networking.
• Strong troubleshooting, problem-solving and incident management skills, with the ability to work effectively under time pressure.
• Knowledge of cyber security, configuration management, automation and infrastructure monitoring.
• Ability to work collaboratively, share knowledge and adapt to new technologies and changing business requirements.
• Experience with Kubernetes, monitoring platforms, networking, cloud technologies or telecommunications/ISP environments would be advantageous.

Responsibilities:

• Administer and maintain Linux and Windows server environments, including Proxmox and other virtualisation technologies.
• Manage patching, configuration, monitoring, performance and capacity, ensuring systems remain secure, reliable and highly available.
• Troubleshoot and resolve server, hardware, software and infrastructure issues, including vendor escalations and out-of-hours support for critical systems.
• Develop and improve automation, scripting, configuration management and monitoring to increase efficiency and system resilience.
• Contribute to infrastructure, cloud, security and wider Technology projects, identifying opportunities to improve performance, availability and scalability.
• Share technical knowledge and support colleagues, helping to build technical capability and resilience across the Technology Team.

Technologies:

• Cloud
• Hardware
• Incident Management
• Support
• Kubernetes
• Linux
• Security
• Windows

More:

We are Wessex Internets Technology Team, and this role is a hands-on opportunity to help maintain the server infrastructure that underpins our operations and customer services. We offer a salary of £47,000 - £55,000 dependent on experience, 25 days holiday plus bank holidays with the option to buy or sell up to 5 days, private medical insurance and life assurance, Cycle to Work and Tech purchase schemes, enhanced family leave policies, a 75% staff broadband discount, high street discounts on 100+ brands, summer and Christmas team socials, and career development opportunities. Youll work across Linux and Windows server environments, virtualisation platforms and supporting infrastructure, helping keep our systems secure, resilient, reliable and highly available.

last updated 38 week of 2026