System Administrator

About Secure Tech

Secure Tech is a system integration company based in Riyadh, Saudi Arabia. The company specializes in security systems and technical solutions, committed to providing services and equipment that adhere to international standards in the technological and security fields. The team focuses on continuous development and improvement.

Job Summary

Secure Tech is seeking a System Administrator to manage the day-to-day operations and health of the virtualization and server layers. This full-time role in Riyadh, Saudi Arabia, involves overseeing critical systems including servers hosting GuruCul SIEM, Active Directory, and approximately 250 servers covered under the CrowdStrike EDR estate. Candidates should have 5-10 years of relevant experience.

Key Responsibilities

• Administer VMware vSphere/vCenter clusters, including host health, resource pools, vMotion, snapshots, and capacity planning.
• Manage Nutanix HCI clusters via Prism, focusing on node health, storage pools, replication factor, firmware upgrades, and Nutanix DR.
• Oversee Windows Server infrastructure, Active Directory, DNS, DHCP, Group Policy, Beyond Trust PAM authentication, and endpoint DNS forwarding to Infoblox BloxOne.
• Perform Linux server administration to support application and infrastructure hosts.
• Maintain High Availability across vSphere HA, Nutanix HA, and Windows Failover Clustering, including scheduled failover testing and documentation.
• Coordinate server-level patching with the Vulnerability Assessment Engineer and apply patches within agreed maintenance windows.
• Support Commvault backup jobs at the OS/hypervisor level, ensuring snapshot consistency and agent health, and assist with restore testing.
• Provision and decommission servers/VMs in line with Beyond Trust PAM access provisioning for new administrators.

Required Qualifications and Experience

• Demonstrated experience in VMware vSphere / vCenter administration (VCP-DCV or equivalent hands-on experience).
• Proficiency in Nutanix AHV / Prism Central administration (NCP-MCI or equivalent).
• Expertise in Windows Server administration, including Active Directory, DNS, DHCP, and GPO (MCSA/Windows Server track or equivalent).
• Experience with Linux administration (Ubuntu, SUSE), shell scripting, system management, and storage/LVM.
• Knowledge of Clustering & High Availability design and failover validation.
• Working knowledge of AD-integrated MFA (Cisco Duo) and PAM-gated server access (Beyond Trust).

Work Environment

This is a full-time position based in Riyadh, Saudi Arabia, within a team dedicated to technological and security solutions.

Application Process

Candidates meeting the qualifications are encouraged to apply.