System Administrator
Posted 1 week ago by Church International Limited
Negotiable
Undetermined
Onsite
Hertfordshire, England, United Kingdom
Summary: The role of System Administrator involves supporting NATO by maintaining and securing critical IT infrastructure. The position requires proactive management of systems to ensure operational continuity in mission-critical conditions. Candidates must be prepared for deployment and possess strong technical skills in various IT environments. This role offers a unique opportunity to work within a high-impact NATO setting.
Key Responsibilities:
- Support the deployment and transition of the IT systems
- Provide on-site, remote, and deployed technical support
- Administer Windows Server environments (Active Directory, DNS, Exchange)
- Manage VMware infrastructure (ESXi, vCenter, upgrades, deployments)
- Maintain SAN and NAS storage systems
- Perform backups and recovery in line with SLA/SOPs
- Manage certificates and system security
- Support iSCSI configurations
- Provide end-user support
- Maintain accurate technical documentation
- Troubleshoot and resolve system issues, including urgent deployments
- Work closely with technical teams to ensure service continuity
Key Skills:
- 3+ years' experience in enterprise system administration
- Strong experience with: Windows Server, Active Directory, Exchange & VMware (ESXi, vCenter)
- Experience with certificates and iSCSI
- Good understanding of ITIL practices
- Strong troubleshooting and problem-solving skills
- Ability to work in mission-critical environments
- Willingness to deploy at short notice
- Desirable: VMware (VCP) or Microsoft certification, ITIL Foundation certification, & Experience with automation tools, eg, Ansible
Salary (Rate): undetermined
City: Hertfordshire
Country: United Kingdom
Working Arrangements: on-site
IR35 Status: undetermined
Seniority Level: undetermined
Industry: IT
Herefordshire- United Kingdom (On-site with limited remote work) Contract: 10 May 2026 - 30 December 2026 38 hours per week (Monday-Friday, 09:00-17:00) Travel: 25-40% deployment required SC/DV Cleared required: NATO Secret can be added
About the Role
We are seeking a skilled and proactive System Administrator to support NATO. You will be responsible for maintaining and supporting critical IT infrastructure, ensuring systems remain secure, available, and fully operational in mission-critical conditions.
Key Responsibilities
- Support the deployment and transition of the IT systems
- Provide on-site, remote, and deployed technical support
- Administer Windows Server environments (Active Directory, DNS, Exchange
- Manage VMware infrastructure (ESXi, vCenter, upgrades, deployments)
- Maintain SAN and NAS storage systems
- Perform backups and recovery in line with SLA/SOPs
- Manage certificates and system security
- Support iSCSI configurations
- Provide end-user support
- Maintain accurate technical documentation
- Troubleshoot and resolve system issues, including urgent deployments
- Work closely with technical teams to ensure service continuity
Requirements & Skills
- 3+ years' experience in enterprise system administration
- Strong experience with: Windows Server, Active Directory, Exchange & VMware (ESXi, vCenter)
- Experience with certificates and iSCSI
- Good understanding of ITIL practices
- Strong troubleshooting and problem-solving skills
- Ability to work in mission-critical environments
- Willingness to deploy at short notice
Desirable: VMware (VCP) or Microsoft certification, ITIL Foundation certification, & Experience with automation tools, eg, Ansible
Additional Information
- Ability to work in demanding environments
- Must be fully deployable
This role offers the opportunity to work in a high-impact NATO environment, supporting critical IT systems and gaining experience with advanced enterprise infrastructure in a collaborative setting.