✦ Luna Orbit — System Administration

Systems Administrator

at Robert Half

📍 San Antonio, TX Remote 💰 $38 – $44 USD / year Posted April 09, 2026
Salary $38 – $44 USD / year
Type Contract
Experience mid
Exp. Years Not specified
Education Not specified
Category System Administration

Contract Systems Administrator to maintain and optimize AD, Windows Server, and Entra ID environments with virtualization and storage solutions, ensuring IT security and reliability.

  • Administer Active Directory and Windows Server
  • Oversee virtualization (ESX) and storage (NetApp, SAN)
  • Implement backup solutions with Rubrik
  • Collaborate across teams to resolve issues
  • Monitor performance and ensure IT security compliance

Administers Active Directory, Windows Server, and Microsoft Entra ID; handles ESX/VMware virtualization, NetApp/SAN storage, and Rubrik backups; maintains security posture and documents configurations and changes.

The ideal candidate is a systems administrator with hands-on experience in Active Directory, Windows Server, and virtualization/storage technologies, capable of supporting a production environment with IT security focus and Remoted deployment.

Administer and maintain systems such as Active DirectoryWindows Serverand Microsoft Entra IDOversee virtualization environmentsincluding ESXand manage storage solutions like NetApp and SAN technologiesImplement backup solutions using tools like Rubrik to safeguard organizational dataCollaborate with cross-functional teams to deliver technical guidance and resolve system-related issuesMonitor system performance and perform regular updates to maintain compliance with IT security standardsPlan and execute complex computer system tasks in alignment with company policies and proceduresProvide technical expertise and project management support for system implementations and upgradesEnsure system availability and reliability by proactively identifying and addressing potential risksMaintain documentation and create reports to track system configurations and performance metricsBuild and sustain positive relationships with coworkers and stakeholders to facilitate smooth operations
Active DirectoryWindows ServerMicrosoft Entra ID
Active DirectoryWindows ServerMicrosoft Entra IDEntra IDESXVMwareNetAppSANRubrikBackupIT securityVirtualizationStorageProduction deploymentDocumentation
Active DirectoryWindows ServerMicrosoft Entra IDEntra IDESXVMwareNetAppSANRubrikBackup
CommunicationTeam collaborationProblem-solvingProactiveDocumentation
Industry Technology
Job Function Maintain and optimize Windows-based systems and virtualization/storage infrastructure
Role Subtype Windows Sysadmin
Systems AdministratorActive DirectoryWindows ServerMicrosoft Entra IDEntra IDESXVMwareNetAppSANRubrikBackupIT securityVirtualizationStorageProduction deployment
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