Senior Infrastructure Engineer

Salary: £55,000 - 65,000 per year

Requirements

• Strong enterprise Windows Server infrastructure experience
• Strong IIS, Failover Clustering, and Microsoft NLB experience
• Experience supporting high-availability production and server environments
• Strong Microsoft Entra ID and Microsoft 365 administration experience, including Exchange Online, Defender, and Intune
• Experience supporting AWS and Cloudflare environments
• Strong infrastructure troubleshooting and root cause analysis skills
• Experience working across server, network, and cloud infrastructure
• Comfortable supporting production systems in a fast-paced environment
• Able to work remotely with 1 day per month in Oxford
• Willing to participate in a shared 24/7 on-call rota, approximately 1 week in every 6
• Linux systems administration experience is desirable
• PowerShell or automation experience is desirable
• Exposure to web or application hosting environments is desirable

Responsibilities

• Maintain and improve critical infrastructure platforms across Windows Server, Microsoft cloud, and web infrastructure environments
• Ensure systems remain secure, stable, and highly available
• Support infrastructure change and platform improvements
• Monitor production systems and respond to issues
• Troubleshoot incidents and perform root cause analysis
• Work across server, network, and cloud infrastructure to resolve operational problems
• Support high-availability production platforms used globally

Technologies

• AWS
• Cloud
• Support
• Linux
• Microsoft 365
• Network
• PowerShell
• Web
• Windows
• Office 365
• DevOps

More

We are a growing Top Tech Company supporting large-scale, high-availability production platforms used globally. This is a hands-on senior infrastructure role focused on Windows Server, cloud platforms, and core Microsoft technologies within a complex production environment. We offer a remote-first working arrangement with 1 day per month in Oxford, a salary of £55,000 to £60,000 plus bonus and benefits, and the opportunity to join a stable, friendly team with strong scope for career progression, exposure to the latest infrastructure technologies, and a healthy work-life balance.

last updated 19 week of 2026