Senior IT Support Engineer - Charterhouse Square

  • Sivara GmbH
  • 21/06/2026
Full time Information Technology Telecommunications

Job Description

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.