16 windows system administrator jobs at 13 companies in Hesperia, CA

1d
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Systems Administrator
Brea, California, United States
$85k-$120k/yr OnsiteFull Time
Air Treatment Corporation
Air Treatment Corporation: Sells and services commercial HVAC and refrigeration systems.
Bachelor's degree or equivalent experience, systems administration experience, Windows Server, Hyper-V, networking, security, cloud platforms, scripting, Active Directory, backups, and on-call support.
Windows Server, Windows Hyper-V, AWS, Azure, Bash, PowerShell, Python, Active Directory, Group Policy, Microsoft Certified Solutions Expert (MCSE)
2mo
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System Engineer- ArcGIS
Redlands or St. Louis or Vienna
$121k-$198k/yr OnsiteFull Time
Esri
Esri: Developing software for digital mapping and spatial data analysis.
8+ YOE8+ years experience deploying and administrating enterprise ArcGIS or comparable systems; Windows/Linux sysadmin; scripting (Python, PowerShell, JavaScript, C#); RDBMS and SQL; Top Secret/SCI clearance and US citizenship; Bachelor\u0002s in STEM.
ArcGIS, ArcGIS Enterprise, ArcGIS Desktop, ArcGIS Online, Portal for ArcGIS, ArcGIS Runtime, RDBMS, SQL, SQL Server, Oracle, PostgreSQL, Python, PowerShell, Javascript, C#, Windows, Linux
2mo
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Systems Administrator
Victorville, California, United States
$79k-$100k/yr RemoteFull Time
Dynamic Solutions Technology
Dynamic Solutions Technology: Provides IT, engineering, and program management services to government agencies.
5+ YOE5+ years systems administration experience supporting Microsoft Windows environments; account management, troubleshooting, hardware/software installation, patching, backups; BS in IT or equivalent experience; certification like CompTIA Security+/Network+/A+, MCP, or MCSA; travel required.
Microsoft Windows, Microsoft Office
1w
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Network Administrator Sr.
Riverside, California, United States
OnsiteFull Time
Provident Savings Bank
Provident Savings BankNASDAQ: PROV: Community bank providing personal, business, and mortgage banking services.
7+ YOERequires 7+ years of IT experience, 4+ years in network or system administration, CompTIA Server+ or Network+ or equivalent, CA driver's license, and experience with Windows Server, networking, security, and PowerShell.
Windows Server, Active Directory, SAN, TCP/IP, DNS, DHCP, VPN, PowerShell, Firewalls, IDS, Endpoint Protection, IPS
1mo
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System Engineer – ArcGIS (Mission-Focused)
Redlands or St. Louis or Vienna
$121k-$198k/yr OnsiteFull Time
Esri
Esri: Developing software for digital mapping and spatial data analysis.
8+ YOE8+ years supporting enterprise ArcGIS and system engineering; experience with ArcGIS Enterprise/Desktop/Online, Windows/Linux administration, scripting (Python, PowerShell, JavaScript, C#), RDBMS and SQL; US citizen with active Top Secret/SCI; Bachelor's in STEM.
ArcGIS Enterprise, ArcGIS Desktop, ArcGIS Online, Portal for ArcGIS, ArcGIS Runtime, Windows, Linux, Python, PowerShell, JavaScript, C#, SQL Server, Oracle, PostgreSQL
2d
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Dealership Management Systems Administrator
El Monte, California, United States
$90k-$100k/yr OnsiteFull Time
Longo Lexus
Longo Lexus: Authorized Lexus dealership providing vehicle sales and maintenance services.
3+ YOERequires 3–5 years of IT systems administration experience, advanced Excel skills, Microsoft Windows administration, Endpoint Manager and help desk software experience, a driver's license, and travel up to 25%.
Microsoft Windows, Microsoft Endpoint Manager, help desk ticketing software, Tekion, Macro Express, AWS, Microsoft Excel, Analytics Portal, Custom Library, Comply Auto, GearSync, Microsoft 365?
2w
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Systems Administrator V – AWS Cloud Operations Lead
Edwards AFB, California, United States
$150k-$185k/yr OnsiteFull Time
Integrits Corporation
Integrits Corporation: Provides engineering, IT, and program management services for government.
12+ YOE12+ years systems administration experience, Windows/Linux and AWS/Azure administration, CompTIA Security+, SECRET clearance, bachelor’s degree or equivalent, containerization and CI/CD tool experience.
Microsoft Windows, Linux, AWS, EC2, EBS, Jira, Confluence, Bitbucket, Jenkins, Artifactory, Gitlab pipelines, Azure, AzureDevOps, Oracle SQL Developer, Docker, Podman, Microsoft Outlook, Microsoft Word, Microsoft PowerPoint, Microsoft Excel
1mo
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Senior System Engineer – ArcGIS (Mission-Focused)
Redlands or St. Louis or Vienna
$156k-$239k/yr OnsiteFull Time
Esri
Esri: Developing software for digital mapping and spatial data analysis.
12+ YOE12+ years experience designing/implementing enterprise ArcGIS or comparable systems; Windows/Linux administration; scripting (Python, PowerShell, JavaScript, C#); RDBMS and SQL; familiarity with networking; US citizenship with active Top Secret/SCI clearance; Bachelor's degree in CS/Math/GIS/STEM.
ArcGIS, ArcGIS Enterprise, ArcGIS Desktop, ArcGIS Online, Portal for ArcGIS, ArcGIS Runtime, Python, PowerShell, Javascript, C#, Windows, Linux, SQL Server, Oracle, PostgreSQL
1d
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IT Systems Administrator
Riverside, California, United States
$110k-$130k/yr OnsiteFull Time
ENC
ENC: Manufacturer of heavy-duty transit buses and shuttle vehicles.
3+ YOERequires 3+ years of desktop and systems support, Windows laptops and servers, Microsoft 365, Active Directory, Hyper-V, networking, security, documentation, and customer-service skills.
Windows 10, Windows 11, Windows Server 2025, Microsoft Hyper-V, Microsoft 365, Active Directory, Microsoft Entra ID, Group Policy, Exchange Online, Teams, SharePoint, OneDrive, DNS, DHCP, RingCentral, Cisco, Cisco Meraki, Unitrends, TeamViewer, VPN, VLANs
3d
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Systems Administrator Lead
San Bernardino, California, United States
$110k-$137k/yr OnsiteFull Time
Stater Bros. Markets
Stater Bros. Markets: Operates a chain of supermarkets in Southern California.
10+ YOE10+ years supporting enterprise Windows servers; expertise in Windows Server, Linux, Azure, Microsoft 365, Active Directory, virtualization, storage, networking, recovery, and infrastructure leadership. California driver's license required.
Windows Server, Red Hat Enterprise Linux, Unix, Azure, Microsoft 365, Entra ID, Intune, Microsoft Copilot, vLLM, Active Directory, Group Policy, VMware, Hyper-V, Docker, Kubernetes, LAN/WAN, SAN, DNS, DHCP, Exchange Online
1mo
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Systems Administrator IV
Edwards AFB or Lancaster or Palmdale
$97k-$130k/yr OnsiteFull Time
JT4
JT4NYSE: AMTM: Provides engineering and technical support for military test ranges.
9+ YOERequires 9+ years computer systems experience, bachelor’s degree or equivalent, U.S. citizenship, ability to obtain Top Secret with Special Access, CompTIA Security+ (DoD IAM Level II) within 6 months, valid driver’s license, Windows/Red Hat, Splunk, ACAS, Active Directory experience.
Splunk, ACAS, Trellix ePolicy Orchestrator, DoD STIGs, IAVM, SCAP, Virtualization, VDI, Windows Operating Systems, Red Hat Operating Systems, Active Directory, IAO Express, Network-Attached Storage (NAS), Storage Area Network (SAN)
3d
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Systems Administrator SME
Corona or Norco
$115k-$135k/yr OnsiteFull Time
Bowhead
Bowhead: Federal government contracting and professional services provider.
5+ YOERequires Secret clearance, IAT Level II certification, and extensive systems administration experience; qualifying paths include high school/GED plus 12+ years, bachelor's plus 8+ years, or master's plus 5+ years.
Windows, Linux, Unix, Microsoft Office Suite, firewalls, anti-virus, intrusion detection
1w
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Technical Consultant – System Engineering Focus (Mission Focused)
St. Louis or Redlands or Vienna
$84k-$142k/yr OnsiteFull Time
Esri
Esri: Developing software for digital mapping and spatial data analysis.
5+ YOE5+ years implementing/supporting enterprise GIS, ArcGIS Enterprise administration, systematic system engineering, strong communication, bachelor\u0002s degree in STEM/GIS, US citizenship and active Top Secret/SCI clearance, ability to travel up to 25%.
ArcGIS Enterprise, Kubernetes, Python, PowerShell, Shell scripting, Windows, Linux, HTTP, TCP/IP, DNS, TLS
1mo
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Tier 1 Technical Support
Edwards Air Force Base, California, United States
OnsiteFull Time
SMS Data Products Group
SMS Data Products Group: Provides IT infrastructure modernization and cybersecurity for federal agencies.
2+ YOE2+ years Windows system administration/technical support, experience with Windows OS, high-end hardware/scientific peripherals, ability to obtain DoD Interim Secret clearance; MD-102/A+ and Security+ preferred.
Windows, Linux, SQL, SharePoint, Web Help Desk, STIG, VTC
4d
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Senior Program Analyst
Los Angeles or San Francisco or Sacramento or San Ramon or Chatsworth or Santa Ana or Ontario or San Diego
$135k-$150k/yr OnsiteFull Time
Cordoba Corporation
Cordoba Corporation: Civil engineering, program management, and infrastructure planning firm.
7+ YOERequires 7+ years of systems and network administration experience, a computer science or related bachelor's degree or equivalent experience, strong troubleshooting skills, and expertise with Windows, networking, security, cloud, and virtualization.
Microsoft Windows, Windows Server, DNS, DHCP, SMTP, HTTP, HTTPS, SFTP, Microsoft Active Directory, Entra ID, Office 365, Microsoft SharePoint, VPN Appliances, Cisco Meraki Appliances, CrowdStrike, Zoom, Microsoft Teams, VPNs, ACLs, IPSEC, SSL, PowerShell, VMware, Hyper-V, Rubrik Backup and Recovery, Nessus, Splunk
2w
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Office Manager - Administrative
Chino, California, United States
$23-$26/hr OnsiteFull Time
CentiMark
CentiMark: Provides commercial roofing and industrial flooring services.
Manage daily office operations, support sales reps, create and maintain reports, handle multi-line phone systems, process mail, order supplies, and perform accounting tasks.
Microsoft Excel, Microsoft Word, Microsoft Windows, Microsoft PowerPoint, SAP