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/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 within 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 a plus PowerShell or automation experience is a plus Exposure to web or application hosting environments is a plus 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 incidents Troubleshoot infrastructure issues and carry out root cause analysis Support server, network, and cloud infrastructure across complex production environments Participate in a shared 24/7 on-call rota Work closely within our operations team to support large-scale global platforms Technologies: AWS Cloud Support Linux Microsoft 365 Network PowerShell Web Windows Office 365 More: We are a growing Top Tech Company operating large-scale, high-availability production platforms used globally. This is a hands-on infrastructure role within our operations team, focused on Windows Server, cloud platforms, and core Microsoft technologies in a complex production environment. The position is remote with 1 day per month in Oxford, and we offer a salary of £55,000 to £60,000 plus bonus and benefits. We provide a stable, friendly environment with strong career progression, exposure to the latest infrastructure technologies, and a healthy work/life balance. last updated 21 week of 2026