In this role you help plan, operate and secure the firm’s core IT infrastructure. You will be the first escalation point for infrastructure issues and work across end-user platforms, cloud services and network components to keep services running smoothly. You’ll partner with IT security and Service Desk to resolve incidents and implement improvements. This is a hands-on, cross-functional role in a forward‑looking, ESG‑minded firm where technology enables safer, more efficient delivery of projects.
Responsibilities
Administer Microsoft 365, Intune and Entra ID including Teams and telephony
Manage patching and software deployment
Support Azure Virtual Desktop
Assist with network switching, wireless and firewall infrastructure
Diagnose connectivity, performance and VPN issues
Perform routine network and firewall changes
Collaborate with Service Desk on escalated incidents and knowledge transfer
Triaging infrastructure alerts and incidents
Support Windows Server and Active Directory
Maintain technical documentation and runbooks
Key requirements
Proven experience in infrastructure engineering or advanced 2nd/3rd line role
Strong Microsoft 365, Intune and Entra ID administration
Solid networking knowledge (TCP/IP, DNS, DHCP, VLANs, VPN) and troubleshooting
Experience with enterprise switching and firewall platforms
Experience supporting Windows desktop and server environments (on-prem and cloud)
PowerShell scripting experience
Structured troubleshooting approach and issue resolution
Security-conscious approach to infrastructure administration
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