Senior IT Infrastructure Engineer

• Annual Salary: £45,000
• Location: Abingdon

We are seeking a Senior IT Infrastructure Engineer to work for our client based in Abingdon - This role involves the implementation and ongoing management of their IT infrastructure across both on-premises and Azure cloud environments.

The ideal candidate will be a proactive professional capable of leading projects from concept to completion and ensuring the delivery of robust, secure, and scalable infrastructure solutions.

Day-to-day of the role:

• Implement and maintain hybrid infrastructure solutions (Azure + on-prem) that meet performance, security, and compliance requirements.
• Manage and optimise Windows Server, SQL Server, and Azure environments including Virtual Machines, Networking, Storage, Backup, and Monitoring.
• Maintain and secure Active Directory, Group Policy, DNS, DHCP, and Azure AD (Entra ID) synchronisation.
• Ensure high availability and resilience across all servers, networks, and databases supporting business-critical applications.
• Deliver advanced troubleshooting and root cause analysis for complex infrastructure issues.
• Proactively identify opportunities for improvement, automation, and optimisation across all infrastructure areas.
• Maintain alignment with Cyber Essentials Plus & GDPR, implement and manage endpoint protection, patch management, and vulnerability remediation.
• Ensure data protection and system continuity through effective backup, disaster recovery, and business continuity planning.
• Automate deployment and maintenance tasks using PowerShell, Azure Automation, or equivalent tools.
• Maintain infrastructure observability through tools and optimise cost, performance, and utilisation of Azure and on-prem resources.

Required Skills & Qualifications:

• 10+ years hands-on experience in IT infrastructure roles, with at least 5 years in a senior or lead capacity.
• Strong expertise in Microsoft Azure IaaS & PaaS, Active Directory, Group Policy, DNS, DHCP, Windows Server , and SQL Server administration.
• Deep understanding of LAN/WAN design, VLANs, VPNs, routing, switching, and firewall management.
• Experience with Microsoft 365, Intune, and Endpoint Manager.
• Advanced PowerShell scripting and automation skills.
• Proven experience managing secure environments aligned with Cyber Essentials Plus or ISO 27001.
• Ability to work independently, prioritise effectively, and deliver projects to completion with minimal supervision.
• Degree in Computer Science, Information Technology, or equivalent experience.
• Desirable certifications include Microsoft Certified: Azure Administrator Associate (AZ-104) or Azure Solutions Architect Expert (AZ-305), MCSE, CompTIA Network+, ITIL Foundation.

If you are interested in this position please apply online or for more information please contact me on