Senior IT Infrastructure Engineer - Azure, VMs & Automation

Doncasters; Killamarsh; On-site; GBP 65,000 - 90,000; Full time

Job summary

Doncasters is seeking a hands-on Senior IT Infrastructure Engineer to own and evolve a hybrid infrastructure across Azure, M365, Entra ID, Windows and Linux, plus virtualization and networking. You will drive automation, security and resilience, contributing to major transformation programmes and cyber-ready operations.

The role focuses on cloud governance, identity management, disaster recovery and high-availability services, with responsibility for incident resolution and continuous service

Qualifications

• Hands-on expertise across Azure, Microsoft 365, Entra ID, Windows Server and core infrastructure services.
• Strong enterprise networking and firewall troubleshooting across multi-vendor environments.
• Certifications in Microsoft, Veeam, VMware, Hyper-V, Linux, networking or automation are advantageous.

Responsibilities

• Administer and secure Azure, Microsoft 365, Entra ID and AD services, supporting cloud governance and access controls.
• Maintain Windows and Linux servers, VMware/Hyper-V environments, ensuring platform reliability and security.
• Manage and improve backup and disaster recovery solutions (Veeam, Rubrik) and support DR testing and cyber resilience.
• Contribute to infrastructure migrations, data centre modernisation, platform upgrades and hybrid cloud initiatives.
• Develop scripts and automation using PowerShell and other tools; improve monitoring and endpoint management.
• Support enterprise networking, firewalls, endpoint security, vulnerability remediation and privileged access management.
• Troubleshoot complex issues, contribute to major incidents and root-cause analysis; improve service reliability.
• Maintain technical documentation and collaborate with internal teams and suppliers to strengthen infrastructure standards.

Skills

Azure

Microsoft 365

Entra ID

Windows Server

Active Directory

VMware

Hyper-V

Linux

Networking

Security

PowerShell

Automation

Backup & DR

Documentation

Job description

Doncasters is seeking a hands-on Senior IT Infrastructure Engineer to own and evolve a hybrid infrastructure across Azure, M365, Entra ID, Windows and Linux, plus virtualization and networking. You will drive automation, security and resilience, contributing to major transformation programmes and cyber-ready operations.

The role focuses on cloud governance, identity management, disaster recovery and high-availability services, with responsibility for incident resolution and continuous service