✦ Luna Orbit — System Administration

Senior Systems Administrator

at Robert Half

📍 Suprise, AZ Remote Posted March 21, 2026
Type Full-Time
Experience senior
Exp. Years Not specified
Education Not specified
Category System Administration

This role involves overseeing and maintaining mission-critical enterprise IT systems, including servers, storage, virtualization, and security. The senior systems administrator provides technical leadership and ensures system performance and security.

  • Oversee daily IT operations
  • Manage Windows and Linux servers
  • Administer VMware vSphere
  • Implement disaster recovery
  • Enforce security policies

The position requires expertise in Windows and Linux server environments, VMware virtualization, storage area networks, disaster recovery, and security policies. Familiarity with scripting and vendor management is essential.

The ideal candidate is a senior system administrator with extensive experience managing Windows and Linux enterprise systems, virtualization, and storage solutions. They possess strong leadership skills and are proficient in system security, disaster recovery, and vendor management.

Windows ServerLinuxActive DirectoryPowerShellVMware vCenter / vSphereSANDisaster RecoverySecurity Policies
Microsoft ExchangeGroup PolicyDNSDHCPServer BackupVulnerability Assessment
Microsoft ExchangeActive DirectoryPowerShellVMware vCenter / vSphereSAN
Windows ServerLinuxActive DirectoryPowerShellVMware vCenterSANDisaster RecoverySecurity PoliciesServer BackupVulnerability Assessment
Windows ServerLinuxMicrosoft ExchangeActive DirectoryGroup PolicyDNSDHCPPowerShellVMware vCenter / vSphereSANData StorageServer BackupDisaster RecoveryITILVendor ManagementSystem Performance MonitoringSecurity PoliciesPatch ManagementVulnerability Assessment
LeadershipMentorshipTechnical TroubleshootingProject ManagementVendor LiaisonCommunicationProblem-solvingTeamwork

Preferred

ITIL FoundationVMware Certified Professional
Industry IT Services
Job Function Enterprise system administration and infrastructure management
Role Subtype Systems Administrator
Tech Domains Active Directory, Microsoft 365, VMware, Windows Server, Security Policies
System AdministratorWindows ServerLinuxActive DirectoryPowerShellVMware vCenterSANDisaster RecoverySecurity PoliciesServer BackupVulnerability AssessmentITILVendor ManagementTroubleshootingSystem Performance Monitoringsystem administratorwindows serverlinuxactive directorypowershellvmware vcenterdisaster recoverysecurity policiesserver backupvulnerability assessment

Lack of experience with VMware vSphere, No experience with Active Directory or PowerShell, No senior-level system administration background

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