Infrastructure Engineer

Job summary

The Infrastructure Engineer role is responsible for managing, securing, and modernizing both on-premise and cloud infrastructure, with a focus on Microsoft Entra ID administration. Key responsibilities include maintaining server estates, managing Active Directory, supporting cloud migrations, and contributing to security initiatives such as Cyber Essentials Plus.

Benefits

Qualifications

• Educated to Degree Level
• Proven experience administering Windows Server environments and Active Directory at scale
• Hands-on experience administering Microsoft Entra ID
• Hands-on experience with virtualisation platforms
• Practical understanding of core networking
• Some exposure to Azure or another public cloud platform
• Working knowledge of endpoint security, patch management, and vulnerability remediation
• Strong troubleshooting skills and a methodical approach to problem-solving
• Clear communicator, comfortable working with both technical peers and non-technical stakeholders

Responsibilities

• Administer and maintain server estate (physical and virtualised)
• Support and decommission legacy/EOL systems
• Manage Active Directory across multiple domains
• Administer core infrastructure services: DNS, DHCP, file/print, backup and disaster recovery, VOIP Telephony
• Support migration from VMware vSphere 7 to vSphere 8/9 or to Hyper-V/Azure
• Own day-to-day administration of Microsoft Entra ID
• Support Entra ID tenant consolidation across Group brands
• Configure and maintain Conditional Access policies, MFA enforcement, and password policy
• Administer Privileged Identity Management (PIM) and just-in-time (JIT) access
• Support hybrid identity sync (AD to Entra ID) and troubleshoot synchronisation issues
• Support Microsoft 365 administration alongside Entra ID
• Assist with Azure infrastructure supporting Group applications and data platforms
• Contribute to Cyber Essentials Plus programme
• Operate and tune endpoint and network security tooling
• Support security patching, vulnerability remediation, and hardening
• Participate in incident response and root-cause investigation
• Produce and maintain clear documentation for infrastructure
• Work within change management (CAB) processes
• Provide 2nd/3rd-line escalation support and mentor junior team members
• Collaborate with the wider IT team on projects

Skills

Certifications

Degrees

Relocation