3rd Line Infrastructure Operations Specialist; M365 & Azure

Laing O'Rourke are looking for a 3rd Line Infrastructure Operations Specialist to take ownership of our Microsoft 365 and Azure platforms and keep them running at enterprise scale.

In this role, you will act as the senior escalation point for complex cloud issues, drive continuous service improvement, and serve as a trusted technical authority ensuring our infrastructure remains resilient, secure, and aligned with best practice.

• Provide expert support across Microsoft 365, including Exchange Online, SharePoint Online, Teams, One Drive, Intune and Entra .
• Manage Azure resources such as VMs, storage, VNets, load balancers and identity/security configurations.
• Ensure strong governance, compliance, patching and operational standards across M365 and Azure services.
• Monitor performance and capacity, identifying risks and driving proactive improvements.
• Lead advanced troubleshooting and collaborate closely with engineering, cyber and project teams.

• Hands‑on experience administering Microsoft 365 and Azure in a large‑scale environment.
• Strong understanding of Active Directory, Azure AD/Entra  identity/access management.
• Experience working within ITIL‑aligned incident, change and problem processes.
• Certifications such as MS‑900, MS‑102, AZ‑900 and AZ‑104, or equivalent experience.
• Strong analytical, diagnostic and communication skills.

• Familiarity with Solar Winds, Nutanix, Nasuni, Commvault or Microsoft Server.
• Understanding of networking technologies including Azure Firewall, VLAN/VWAN and hybrid connectivity.

• Play a key part in the technology landscape behind industry‑defining global projects.
• Benefit from dedicated development time and support for further certifications.
• Work within a collaborative, service‑driven culture where your expertise makes a measurable difference.
• Gain hands‑on experience with leading cloud and infrastructure technologies.

As part of the Disability Confident scheme, we would like to enable access to candidates with long term conditions and disabilities through the ‘Offer an interview scheme'. This supports applicants that meet the essential criteria by offering an interview for the advertised position.

We want to ensure our recruitment process is accessible to all. If you need the application form in an alternative format or you would like to know more about our recruitment process, please email re