IT Infrastructure Engineer

IT Infrastructure Engineer - London Marshall Wolfe are hiring on behalf of our client, a Senior Infrastructure Support Engineer, to oversee and enhance a complex international technology estate spanning on-premises infrastructure, cloud services, Microsoft 365, networking, cybersecurity, and end-user technologies. The Role You'll play a key role in maintaining, securing, and evolving enterprise infrastructure across multiple international locations. Acting as a senior technical escalation point, you'll work closely with internal teams and external technology partners while leading infrastructure projects from design through to delivery. Key Responsibilities Manage and optimise Windows Server, Active Directory, virtualisation, storage, backup and disaster recovery environments. Support and develop Azure infrastructure, including networking, governance, VMs, VPNs and disaster recovery solutions. Administer Microsoft 365 services, including Exchange Online, SharePoint, Teams, OneDrive and Purview. Lead endpoint management and modern workplace initiatives using Intune and Autopilot. Manage identity and access controls across hybrid Active Directory and Microsoft Entra ID environments. Oversee network security technologies including firewalls, VPNs and switching infrastructure. Lead global infrastructure projects and coordinate third-party suppliers and MSPs. Support vulnerability remediation, cyber security initiatives and compliance programmes. Requirements Strong experience within IT Infrastructure Windows Server, VMware and/or Hyper-V environments. Azure IaaS, networking and cloud governance. Microsoft Entra ID, Conditional Access, PIM and Single Sign-On. Microsoft Intune, Autopilot and endpoint security management. Microsoft 365 administration and collaboration platforms. Backup, disaster recovery and enterprise security best practices. Managing vendors, stakeholders and delivering technical projects. Desirable Skills Palo Alto Firewalls and GlobalProtect. Cisco Switching and Cisco ISE. Citrix / NetScaler. Azure AI Foundry, Power Platform or Power BI/Fabric. ITIL, Microsoft Azure/M365 certifications, CCNA or relevant degree. Location: London (hybrid - 4 days on site per week) This is the chance to join a global organisation with excellent career-growth opportunites. Please apply with your CV in the first instance.