Hybrid - Around 3 days in office in Central Glasgow, rest working from home

Lorien’s client, a fast-growing, global-reaching SAAS company with a great reputation in their domain, are currently looking to hire a Senior Systems Administrator to play a key role in strengthening and modernising an internal IT environment. This is a hands‑on senior technical role, ideal for someone who enjoys a mix of operational ownership, improvement projects, mentoring junior engineers, and driving best practice across infrastructure, identity and endpoint management.

What You’ll Be Doing

Acting as a subject matter expert for Windows & MacOS, Active Directory, Group Policy, DNS, DHCP and Microsoft infrastructure services.
Administering and improving Microsoft 365 including Exchange Online, Teams, SharePoint, and Entra ID
Managing modern endpoint environments across Windows 10/11, macOS and iOS using Intune
Supporting and maintaining Hyper‑V virtualisation, storage, and backup platforms
Leading 2nd/3rd line escalations, root cause analysis and preventative improvements
Driving patching, system hardening and vulnerability remediation
Contributing to internal IT upgrades, migrations and wider improvement initiatives
Keeping technical documentation, runbooks, and asset records accurate and up‑to‑date
Providing mentoring, guidance and knowledge-sharing with junior IT colleaguesWhat We’re Looking For

Proven track record in systems administration across Windows and macOS environments
Hands‑on skills across Microsoft 365, Entra ID, Intune / device management
Strong understanding of Active Directory, GPO, DNS, DHCP and core Microsoft infrastructure services
Demonstrable record across Hyper‑V / virtualisation, backup solutions, DR planning and resilience testing
Solid networking knowledge: LAN / WAN / VLANs / VPNs / firewalls
Ideally PowerShell skills and a strong grasp of automation
Desirable: Linux, Terraform or Ansible, Teams telephony, IIS, DR simulationsWhy This Role Might Suit You

If you enjoy real technical ownership, modernising environments, driving improvement, and mentoring others-while working across identity, endpoints, infrastructure, and security-this role offers strong variety and impact.

They offer a comprehensive benefits package including annual and spot bonuses as well as a generous holiday allowance, and a supportive, evolving work setting. So if you’re looking to join a great firm with major expansion and evolution on the horizon, offering a host of benefits with staff at the centre such as flexible working, bonuses and recognition rewards, healthcare, progression and more, apply now with your latest CV and let’s have a chat.

Guidant, Carbon60, Lorien & SRG - The Impellam Group Portfolio are acting as an Employment Business in relation to this vacancy