Infrastructure Security Engineer

Salary: £33,000 - 48,000 per year

Requirements:

• We require SC clearance, or willingness to undertake it.
• We need at least 5 years experience managing, maintaining, configuring, and troubleshooting large-scale hybrid environments.
• We need at least 3 years experience with Microsoft Windows Server operating systems, Windows Active Directory, and Entra ID.
• We need experience with VMware/Hyper-V.
• We need a good understanding of ITIL Service Operations, including Incident, Request, Problem, and Change Management in a support role.
• We need clear communication skills with peers and management.
• We need to be self-driven and resourceful, with the ability to work independently and collaboratively.
• We need flexibility to adapt to changing requirements, schedules, and priorities.
• We need the ability to share ideas, make recommendations, and build team consensus.
• We need excellent communication, writing, and meeting facilitation skills.
• We need technical qualifications in Microsoft Windows Server, VMware vSphere, and Microsoft Azure Services.
• We need familiarity with PowerShell for tasks and reporting.
• We value in-depth 3rd Line Support experience resolving incidents in complex environments.
• We value strong experience supporting server infrastructure in a hybrid multi-platform environment.
• We value operational support expertise for identity services, including authentication, authorization, access, and federation.
• We value accurate and logical problem-solving skills.
• We value Active Directory deployment, configuration, and troubleshooting skills, including Group Policy.
• We value Entra ID authentication and access control experience, including conditional access policies and enterprise application deployment.
• We value experience supporting Microsoft Windows networking services such as DNS and DHCP.
• We value experience managing anti-virus services and reporting.
• We consider modern device management experience, such as Intune and Workspace ONE, advantageous.
• We consider experience with Azure Privileged Identity Management and Identity Governance advantageous.
• We consider Windows Server Hybrid Administrator Associate certification (AZ-800 / AZ-801) advantageous.
• We consider Microsoft Identity and Access Administrator certification (SC-300) advantageous.
• We consider experience with converged technologies such as Simplivity and UCS advantageous.
• We consider virtualization experience with VMware and Hyper-V advantageous.

Responsibilities:

• We provide proactive and reactive support for estate management across multiple customers.
• We resolve incidents and complete change requests.
• We focus on improving first-time fix rates.
• We ensure SLA targets are met.
• We manage calls and incidents, including wider call management.
• We respond to service calls and resolve incidents.
• We adhere to escalation procedures.
• We assist with technical escalations for other team members.
• We monitor the call queue and follow up with specialist support teams.
• We adhere to customer and Computacenter security policies.
• We participate in team and sector meetings.
• We use ITSM tools to monitor incident progress.
• We ensure incident records and associated paperwork are completed accurately.
• We monitor and update the call management system as required.
• We assist with SLA reporting.

Technologies:

• Active Directory
• Azure
• Hyper-V
• Support
• ITIL
• ITSM
• PowerShell
• Security
• VMware
• Windows
• Cloud
• Excel
• Incident Management

More:

We are offering multiple full-time, in-office opportunities for 3rd Line Infrastructure Support Analysts within our secure delivery locations in Nottingham, Hatfield, or Milton Keynes. Our shared delivery team supports multiple customers and focuses on proactive and reactive estate management, incident resolution, root cause analysis, and change request completion. The role offers a competitive salary, on-call and overtime opportunities, and comprehensive, flexible benefits.

last updated 31 week of 2026