Senior System Administrator

Senior Systems Administrator (Azure)

Location: Oxfordshire

Hybrid working model (one day per week on-site)

Salary: 40,000 - 50,000

Contract: Full-time, Permanent

A large, purpose-led organisation is looking for a Senior Systems Administrator with strong Azure and infrastructure experience to support, secure, and optimise resilient cloud services within a compliance-driven environment.

Key responsibilities:

• Building, supporting, and maintaining Azure infrastructure (IaaS/PaaS)
• Ensuring security, compliance, and resilience across platforms, including vulnerability management and security hardening
• Managing hybrid Azure / on-prem environments and Entra ID
• Supporting backup, disaster recovery, and failover processes
• Monitoring and responding to security alerts, vulnerabilities, and system events
• Supporting audits and compliance activities (PCI, Cyber Essentials)
• Identifying opportunities to optimise cloud performance and cost efficiency
• Contributing to documentation, runbooks, and continuous service improvement
• Working within ITIL-aligned service management environments

What we’re looking for:

• Proven experience in a senior infrastructure / sysadmin role
• Strong hands-on Azure experience
• Solid security experience, including vulnerability management and endpoint protection (e.g. Microsoft Defender)
• Experience with automation and scripting (PowerShell)
• Strong server administration across Windows/Linux environments
• Experience working in compliance-driven environments and supporting audits
• Confident communicator in a global operating environment

Nice to have:

• Azure certifications
• Infrastructure as Code (IaC)
• Advanced cloud networking
• Intune / endpoint management (Autopilot)
• SIEM tools (e.g. Sentinel)
• ITIL certification / ServiceNow experience

This is a great opportunity to join a stable organisation with a modern Azure platform and a strong focus on security, compliance, and reliability.

If this looks like this role could be suitable for you please do apply and I will be in touch as soon as possible.