Senior IT Support Engineer - Charterhouse Square

Salary: £55,000 - 60,000 per year

Requirements

• Strong Windows Server administration experience, including IIS, Failover Clustering, and Microsoft NLB
• Experience supporting Microsoft Entra ID and Microsoft 365 technologies, including Exchange Online, Intune, Defender, and Teams
• Experience supporting cloud and edge infrastructure technologies, including AWS and Cloudflare (WAF, CDN, DNS)
• Strong troubleshooting and root cause analysis skills within complex production environments
• Experience supporting highly available, customer-facing platforms
• Ability to work remotely with 1 day per month in Oxford
• Willingness to participate in a shared 24/7 on-call rota (approximately 1 week in every 6)
• Linux systems administration experience is desirable
• Exposure to infrastructure security and hardening best practices is desirable
• Experience working within fast-paced operational or online platform environments is desirable

Responsibilities

• Support and improve Microsoft-based infrastructure and cloud platforms
• Handle monitoring, troubleshooting, patching, maintenance, and infrastructure change activities across critical production systems
• Collaborate closely with internal teams to keep services secure, stable, and highly available across on-premise and cloud environments

Technologies

• AWS
• Cloud
• Support
• Linux
• Microsoft 365
• Security
• WAF
• Windows
• Office 365

More

We are a growing technology company supporting large-scale online platforms used globally. This is a remote role with 1 day per month in Oxford, and we offer a salary of circa £55,000 to £60,000 plus bonus and benefits. We provide a stable, friendly environment with plenty of scope for progression, where you will work with modern infrastructure technologies while maintaining a healthy work/life balance.

last updated 24 week of 2026