IT- Infrastructure Engineer
Gardiner and Theobald LLP · London, London
IT- Infrastructure Engineer at Gardiner and Theobald LLP, based in London, London. This is a permanent role.
- Salary
- Competitive
- Location
- London, London
- Contract
- Permanent
- Posted
- 5 hours ago
- Closes
- 17 Nov 2026
- Sector
- Security
Reference 591945
About the role
About the Role
We are recruiting an IT Infrastructure Engineer to join our IT Infrastructure & Security team.This is a hands-on generalist role covering endpoint management, Microsoft 365, identity, networking and infrastructure support. You will administer a range of core infrastructure platforms and act as the first IT infrastructure escalation point for the Service Desk.
Key responsibilities
- Administering Microsoft 365, Intune and Entra ID, including Microsoft Teams and telephony
- Managing patching and software deployment
- Supporting Azure Virtual Desktop
- Supporting network switching, wireless and firewall infrastructure
- Diagnosing and resolving connectivity, performance and VPN issues
- Carrying out routine network and firewall changes
- Working closely with the Service Desk on escalated incidents, providing technical support and knowledge transfer
- Triaging infrastructure alerts and incidents
- Supporting Windows Server and Active Directory
- Maintaining technical documentation and operational runbooks
Please note this role will operate on normal office hours (Mon-Fri 9am-5:30pm), and on call (evenings and weekends) 1 week in every 4.
About You
Essential Experience- Proven experience in an infrastructure engineering or advanced 2nd/3rd line role
- Strong Microsoft 365, Intune and Entra ID administration experience
- Strong networking knowledge, including TCP/IP, DNS, DHCP, VLANs and VPNs, with the ability to troubleshoot complex connectivity issues
- Experience with enterprise switching and firewall platforms
- Experience supporting Windows desktop and server environments across on-premises and cloud-hosted infrastructure
- Practical PowerShell scripting experience
- A structured troubleshooting approach and the ability to see issues through to resolution
- A security-conscious approach to infrastructure administration
- Excellent written and verbal communication skills
- Cisco CCNA and/or Fortinet NSE4/FCP certification
- VMware vSphere
- Experience with enterprise security tooling and security best practices
About Us
Forward thinking and future focused, we champion social mobility, ethical governance, equality and diversity, creating an inclusive environment where everyone’s unique talents and experiences are valued. Our ESG goals are at the forefront of our business plan, and we are proud to have created social value worth over £19m+ since 2021. Our initiatives include the G&T ESG Committee, dedicated to increasing opportunities and removing barriers for social mobility and equality within the firm, as well as our Next Gen programme which focuses on nurturing the next generation in the industry. Our commitment to realising a more sustainable future is witnessed not only through helping our clients meet their own next zero carbon aspirations but also by reaching our own, with an aim for our firm to be net zero by 2030.Reference: 591945 · Posted 5 hours ago · Closes 17 Nov 2026 · Listed via Gardiner and Theobald LLP
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