3rd Line Infrastructure Operations Specialist (M365 & Azure)

At Laing O'Rourke, we design and deliver world-classengineering and construction projects - but behind every project is a powerful, secure, and innovative IT infrastructure. That's where you come in.

We're looking for a 3rd Line Infrastructure Operations Specialist (M365 & Azure) to be a driving force in keeping our global systems running smoothly, securely, and efficiently. You'll be the go-to expert for Microsoft 365 and Azure, ensuring our teams around the world have the tools they need to collaborate, innovate, and deliver extraordinary results.

This isn't just an operational role - it's your opportunity to influence how cloud technology supports one of the most ambitious infrastructure portfolios in the industry. You'll combine hands-on technical expertise with a service-first mindset to deliver solutions that keep our business moving forward.

The Role
As an Infrastructure Operations Specialist, you'll provide third-line support across a range of IT infrastructure technologies, with a primary focus on Microsoft 365 and Azure. You'll manage daily operations, tackle complex incidents, lead infrastructure improvements, and collaborate with engineering, security, and project teams to ensure our systems are resilient, compliant, and always ready for business.

Key Responsibilities

• Deliver and maintain core infrastructure services with operational excellence.

• Manage and support M365 services (Exchange Online, SharePoint Online, Teams, OneDrive, Intune, Entra ID).

• Administer Azure resources (VMs, storage, VNets, load balancers, EntraID) and security controls.

• Implement compliance and governance frameworks for M365 and Azure.

• Apply patches, updates, and security best practices to ensure stability and compliance.

• Monitor performance, capacity, and service health, taking proactive steps to optimise uptime.

• Provide advanced troubleshooting, technical guidance, and knowledge sharing across the IT team.

What We're Looking For

• Education & Experience:

  • Bachelor's degree in Computer Science, Information Systems, or equivalent experience.

  • 3-5 years' hands-on experience in Microsoft 365 and Azure administration.

  • Strong understanding of Active Directory, Azure AD/EntraID, and identity/access management.

  • Experience in ITIL-based change and incident management processes.

• Skills & Certifications:

  • M365 - MS-900 (Fundamentals) & MS-102 (Expert)

  • Azure - AZ-900 (Fundamentals) & AZ-104 (Administrator Associate)

  • Proficiency with ITSM tools such as ServiceNow.

  • Strong analytical, problem-solving, and communication skills.

• Desirable:

  • Experience with SolarWinds, Nutanix, Nasuni, Commvault, and Microsoft Server.

  • Knowledge of networking concepts, Azure Firewall, VLAN/VWAN, and cloud connectivity.

Why Join Us?

• Be at the heart of a global technology landscape powering some of the world's most ambitious projects.

• Dedicated time for professional development and certification.

• A collaborative, service-focused culture where your expertise will have a direct impact.

• Work with industry-leading cloud and infrastructure technologies.

Laing O'Rourke are an international engineering and construction company delivering state-of-the-art infrastructure and buildings projects for clients in the UK, Middle East and Australia.

Certainty, reliability, quality - this is what our clients want. And at Laing O'Rourke, we have more than 150 years of experience delivering it. Laing O'Rourke's story is one of energy, passion, ambition, people and teamwork. We harness the power of our experience, stretching back over a century and a half to deliver certainty for our clients.

As part of the Disability Confident scheme, we would like to enable access to candidates with long term health 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. Please let us know prior to interview what adjustments are required as well as discussing how we can support you in the workplace.

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