IT Network Administrator

Working pattern: Initially office-based, with flexibility to work on a hybrid basis following successful completion of probation

Working hours: 8:00am–4:00pm, 8:30am–4:30pm, 9:00am–5:00pm or 10:00am–6:00pm

Department: IT

We are looking for an experienced IT Network Administrator to support the implementation, maintenance and continued improvement of a complex IT network environment.

This is a varied technical role covering wired and wireless networking, VMware administration, network security, infrastructure projects and third-line support. You will help maintain a reliable and secure network across multiple sites while supporting ongoing upgrades and improvement projects.

• Install, maintain and troubleshoot Cisco and HP wired and wireless networks.
• Provide third-line technical support for complex infrastructure and networking issues.
• Administer and support VMware environments.
• Maintain and patch network switches, wireless LAN controllers and access points.
• Monitor and maintain network communication cabinets and associated infrastructure.
• Support the design and development of network architecture and infrastructure models.
• Manage cloud connectivity and ensure reliable access to cloud-based services.
• Administer network security controls, including access control lists and Cisco ISE.
• Conduct vulnerability testing, Microsoft baseline assessments and vulnerability remediation.
• Maintain high availability across internet connectivity, servers, wireless networks, telephony and SAN storage.
• Support disaster recovery planning, testing and implementation.
• Assist with infrastructure installations, system upgrades and wider IT projects.
• Conduct Wi-Fi signal surveys and resolve issues involving coverage, interference and signal overlap.
• Maintain accurate network diagrams, technical documentation and asset records.
• Participate in occasional out-of-hours remote support and installation work.

• CCNA certification.
• Hands-on experience supporting Cisco networking environments.
• Strong network troubleshooting skills across LAN, WAN and Wi-Fi environments.
• Experience maintaining switches, wireless controllers and access points.
• Previous experience providing third-line infrastructure or network support.
• A good understanding of network security, access controls and vulnerability remediation.
• Strong communication, documentation and problem-solving skills.

• HP switching and wireless technologies.
• VMware administration and support.
• Cisco ISE.
• Cloud connectivity and hybrid infrastructure.
• Wireless surveys and access point optimisation.
• Server, storage, telephony and data centre environments.
• Change control and IT service management processes.
• Disaster recovery and business continuity planning.

This is an excellent opportunity for a network professional looking for a hands-on role with responsibility across infrastructure, security, wireless networking and technical improvement projects.