My client operates a large, established IT environment supporting hundreds of internal users across multiple business units. The Senior Network Administrator will play a critical role in keeping core systems secure, reliable, and scalable.

This role sits at the heart of the IT function and offers real ownership, from designing and maintaining networks to ensuring business continuity across servers, cloud services, and security layers. You’ll work closely with internal stakeholders, not external clients, focusing on stability, optimization, and long-term improvements.

Key responsibilities include:

• Managing and maintaining enterprise networks (routing, switching, VPNs)
• Administering Windows Server environments, including Active Directory and permissions
• Supporting Microsoft 365 services (Exchange, Azure Active Directory)
• Ensuring network security, backups, disaster recovery, and uptime
• Troubleshooting complex i...