Senior Systems Administrator – Hybrid (Glasgow)

About the role

We are seeking a Senior Systems Administrator to join a fast‑growing SaaS company in Glasgow. The role is hybrid, with around three days a week in the central office and the remainder remote. You will own and modernise a diverse IT environment, mentor junior engineers and drive best‑practice across identity, endpoints and infrastructure.

Key responsibilities

• Act as subject‑matter expert for Windows, macOS, Active Directory, Group Policy, DNS, DHCP and core Microsoft services.
• Administer and improve Microsoft 365 suite – Exchange Online, Teams, SharePoint and Entra ID.
• Manage modern endpoint devices (Windows 10/11, macOS, iOS) via Intune.
• Support and maintain Hyper‑V virtualization, storage and backup platforms.
• Lead 2nd/3rd line escalations, perform root‑cause analysis and implement preventative measures.
• Drive patching, system hardening and vulnerability remediation.
• Contribute to IT upgrades, migrations and broader improvement initiatives.
• Maintain accurate technical documentation, runbooks and asset records.
• Mentor and share knowledge with junior IT staff.

Required profile

• Proven systems administration experience across Windows and macOS environments.
• Hands‑on expertise with Microsoft 365, Entra ID and Intune/device management.
• Strong knowledge of Active Directory, GPO, DNS, DHCP and Microsoft infrastructure services.
• Experience with Hyper‑V, backup solutions, disaster‑recovery planning and resilience testing.
• Solid networking background – LAN, WAN, VLANs, VPNs and firewalls.
• Ideally proficient in PowerShell and automation.

Required skills

• Windows
• macOS
• Active Directory
• Group Policy
• DNS
• DHCP
• Microsoft 365
• Exchange Online
• Teams
• SharePoint
• Entra ID
• Intune
• Hyper‑V
• Virtualisation
• Backup solutions
• PowerShell
• LAN/WAN/VLAN/VPN
• Firewalls
• Linux (desirable)
• Terraform (desirable)
• Ansible (desirable)
• IIS (desirable)
• DR simulations (desirable)

What we offer

• Competitive salary of £47,000 plus annual and spot bonuses.
• Generous holiday allowance and flexible hybrid working.
• Comprehensive benefits package including healthcare and recognition rewards.
• Opportunities for professional growth within a rapidly expanding company.