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34 windows server administrator jobs at 32 companies in Fontana, CA

2mo
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Server Administrator (on-site) (no relo)
Alhambra, California, United States
$44-$51/hr OnsiteFull Time
AHMC Healthcare
AHMC Healthcare: Provider of acute care hospital and emergency medical services.
4+ YOE4+ years server administration experience; expertise with Windows Server, Linux, Active Directory, DNS, DHCP, GPOs, VMware vSphere/ESXi and Microsoft Hyper-V; DR/BC planning; Tier 3 Exchange support; healthcare/HIPAA compliance.
Dell PowerEdge, HP ProLiant, Windows Server, Linux, VMware vSphere/ESXi, Microsoft Hyper-V, Active Directory, Group Policy Objects (GPOs), DNS, DHCP, Microsoft Exchange, SAN, NAS
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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
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20h
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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)
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3mo
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IT System Administrator
Commerce, California, United States
$55k-$59k/yr OnsiteFull Time
JWCH Institute
JWCH Institute: Provides medical care and social services to underserved populations.
3+ YOE3+ years Windows server administration; associate degree or equivalent experience; strong AD, EHR, and IT infrastructure skills.
Windows Server, Active Directory, Office 365, NextGen EHR, EDR, Care Sentry, Welligent, Casewatch, antivirus, backup, monitoring
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3w
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IT System Administrator
Irvine, California, United States
$97k-$119k/hr OnsiteFull Time
CTC Global
CTC Global: Manufactures advanced composite cores for high-voltage electricity transmission cables.
7+ YOE7+ years systems administration and infrastructure experience supporting Windows Server, virtualization, cloud, networking and OT (PLCs/SCADA); Bachelor\u0002s or equivalent experience; preferred networking and security certifications.
Windows Server, Active Directory, DNS, DHCP, VMware, Hyper-V, Azure, Microsoft M365, PLCs, SCADA, HMI, TCP/IP, VLANs, Firewall, VPN
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2d
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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
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1mo
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System Administrator I
Long Beach, California, United States
$27-$32/hr OnsiteFull Time
VectorUSA
VectorUSA: An IT services providing onsite infrastructure support and technical delivery for enterprise clients.
1+ YOE1+ years systems administration experience; associate or bachelor’s in CS/IS or equivalent; familiarity with Windows Server, Active Directory, VMware, Azure; scripting (PowerShell, Bash, Python); ability to obtain TWIC.
Windows Server, Active Directory, DNS, DHCP, TCP/IP, VMware, vSphere, ESXi, VDI, Azure, PowerShell, Bash, Python, SolarWinds, Jira, Confluence, Qualys
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1mo
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Senior Application Administrator
Los Angeles, California, United States
$85k-$130k/yr OnsiteFull Time
CBB Bank
CBB BankOTCQX: CBBI: Full-service commercial bank serving small and medium-sized businesses.
5+ YOEExpert-level application configuration and lifecycle management, Windows Server administration, SQL and reporting, application monitoring and performance tuning, SOX change-control experience, strong communication; 5+ years IT/application support required; Bachelor's preferred.
Windows, Windows Server, SQL
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2mo
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Senior IT System Administrator
Long Beach, California, United States
$107k-$152k/yr OnsiteFull Time
Vast
Vast: Develops and operates commercial artificial-gravity space stations.
4+ YOE4+ years enterprise IT systems administration; expertise with Windows Server, Active Directory, Group Policy, endpoint management (JAMF/Intune/SCCM), patch management, scripting (PowerShell/Python/Bash), virtualization, and networking fundamentals.
Windows Server, Active Directory Domain Services, Group Policy, Configuration Manager (SCCM), JAMF, Linux, VMware, Hyper-V, PowerShell, Python, Bash, WSUS, Ivanti, Automox, NIST 800-53, CIS benchmarks, CMMC
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2d
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IT & Systems Administrator - SoCal Region
San Diego or Vista or San Juan Capistrano or Redondo Beach or Orange or Oceanside or California
$38-$46/hr HybridFull Time
Devil Mountain Wholesale Nursery
Devil Mountain Wholesale Nursery: Wholesale producer and distributor of landscape plants and trees.
5+ YOERequires 5+ years of IT administration and end-user support, Microsoft 365 and Entra ID experience, endpoint management, PowerShell, Windows Server, Active Directory, networking, a California driver's license, and regular regional travel.
Microsoft 365, Exchange Online, Microsoft SharePoint, OneDrive, Microsoft Teams, Entra ID (Azure AD), Entra Connect, Active Directory, Microsoft Intune, PowerShell, NetSuite, Celigo, RingCentral, Point-of-sale systems, Windows Server, RMM, VMWare, MS-102, AZ-104, SC-300, MD-102
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1mo
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Endpoint Systems Administrator
Los Angeles, California, United States
$95k-$125k/yr OnsiteFull Time
Corgan
Corgan: Architecture and design firm providing planning and building services.
5+ YOEBachelor's in CS/MIS or equivalent, 5+ years endpoint/end-user computing experience, expertise with endpoint management (SCCM/MCEM, Intune, JAMF), Windows/MacOS/iOS, Microsoft services and server administration, strong customer service and project skills.
Microsoft Endpoint Configuration Manager, Microsoft Intune, SCCM/MCEM, JAMF, Windows, MacOS, iOS, Microsoft Exchange, Microsoft Entra, Microsoft Teams, Microsoft SharePoint, AD, GPO, DNS, DHCP, DFS, ServiceNow, MTRs, ResourceXpress, Shure, Crestron
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1w
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IT Systems Administrator II
Garden Grove, California, United States
OnsiteFull Time
Evans Manufacturing
Evans Manufacturing: A manufacturing supporting IT infrastructure across its operations.
2+ YOERequires 2+ years in Windows systems or network administration and two or more relevant certifications, such as CompTIA A+, CompTIA Network+, MCSA, or CCNA. Bachelor's degree or equivalent experience desired.
Active Directory, Entra ID, Hyper-V, VMware, Microsoft 365, Zoom Phone, Contact Center, Google Workspace, Windows Server, OS X, Linux, UniFi Access Points, UniFi Cameras, Checkpoint Harmony Endpoint Protection, Checkpoint Harmony Email & Collaboration, Ubiquiti UniFi, Exchange Online, Windows 365, Windows Sandbox
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1d
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Cloud Systems Administrator III
Fullerton, California, United States
$7k-$10k/mo OnsiteFull Time
California State University
California State University: Public university system providing higher education and academic research.
4+ YOEBachelor's equivalent and four years of relevant experience or equivalent substitution. Requires advanced systems administration, cloud, operating systems, server, scripting, virtualization, project management, analytical, communication, and stakeholder skills.
Amazon Web Services (AWS), AWS Organizations, CloudFormation, AWS Cloud Development Kit (CDK), AWS Command Line Interface (CLI), AWS Systems Manager, CloudWatch, CloudTrail, Config, GuardDuty, IAM Access Analyzer, AWS Backup, AWS Budgets, Cost Explorer, Terraform, Git, Linux, Windows Server, containers, serverless
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3w
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Systems Administrator II
Anaheim, California, United States
OnsiteFull Time
Legrand
LegrandEuronext Paris: LR: Global specialist in electrical and digital building infrastructures.
3+ YOE3+ years IT user support experience preferred; working knowledge of TCP/IP, DNS, DHCP; experience with Windows servers, ITSM; bachelor’s degree or equivalent; ability to lift 25 lb and travel occasionally.
Windows, OT, IoT, TCP/IP, DNS, DHCP, ITSM, ITIL 4 Foundation
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21h
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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
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2mo
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Junior IT Systems Administrator (part-time)
Pasadena or United States
$35-$45/hr HybridPart Time
Carbon Mapper
Carbon Mapper: Detects and quantifies greenhouse gas emissions using satellite technology.
1+ YOE1–3 years systems administration or IT support experience; experience with Active Directory/Microsoft Entra ID, MDM (Addigy, Jamf, Intune), Windows/macOS endpoints, networking fundamentals, cloud services, and ability to travel to Pasadena-area sites and lift up to 50 lbs.
Windows, macOS, Active Directory, Microsoft Entra ID (Azure AD), Addigy, Jamf, Microsoft Intune, TCP/IP, DNS, DHCP, VLANs, Windows 10/11, Windows Server, Cisco, Fortinet, pfSense, Meraki, Microsoft 365, Google Workspace, Exchange Online, Microsoft Teams, SharePoint, Microsoft Intune/Endpoint Manager, Freshservice, Freshworks, ServiceNow, Ubuntu, RHEL, CentOS, PowerShell, Bash, VMware vSphere, Microsoft Hyper-V, Proxmox, Microsoft Azure, Amazon Web Services (AWS), Google Cloud Platform (GCP)
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1mo
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Splunk Administrator (Site Reliability Engineer)
Tustin or Riverside or Sacramento
$47-$75/hr HybridFull Time
SchoolsFirst Federal Credit Union
SchoolsFirst Federal Credit Union: Provides financial banking and lending services to members.
5+ YOE5+ years relevant experience, Bachelor\u0002s or equivalent, knowledge of Splunk/SPL, Java/.NET, Linux/Windows servers, observability/APM, containerization, scripting, incident response and ITIL practices.
Splunk, Search Processing Language (SPL), Application Dynamics, SNMP, IBM Security Access Manager (ISAM), IBM/Apache HTTP Server, IBM Secure Directory Server, Docker, Kubernetes, Openshift, Python, Jenkins, Git/Gitflow, Ansible, Quay, Artifactory, Redhat Linux, Microsoft Windows Server, Java, .NET, IBM AIX
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1mo
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Network Security Administrator
Tustin, California, United States
$150k-$180k/yr OnsiteFull Time
Design West Technologies
Design West Technologies: Designs and manufactures aerospace and defense electro-mechanical systems.
5+ YOE5–8 years in network/systems/cybersecurity; hands-on Palo Alto (NGFW, Prisma Access, Cortex XDR); Microsoft Windows Server, Linux, Microsoft Azure, Microsoft Entra ID; CMMC Level 2/NIST SP 800-171 knowledge; active or obtainable Secret clearance.
Palo Alto Networks, NGFW, Prisma Access, Cortex XDR, Microsoft Windows Server 2016\u00092022, Linux, Microsoft Azure, Microsoft Entra ID, Microsoft Active Directory, PowerShell, Bash
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2mo
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Information Security Administrator
Chino, California, United States
$129k-$157k/yr OnsiteFull Time
Inland Empire Utilities Agency
Inland Empire Utilities Agency: Provides regional wastewater treatment and wholesale water distribution services.
5+ YOEFive years of information security governance and operations; knowledge of network monitoring, vulnerability management; experience with OT/ICS security is desirable; must hold valid California driver’s license and one security certification.
Firewalls, Endpoint protection, SIEM, VPNs, Microsoft 365, Azure, Windows servers, Linux servers, Active Directory
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1mo
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Senior IT Network and Security Administrator Engineer
Placentia, California, United States
$100k-$135k/yr OnsiteFull Time
Arlon Graphics
Arlon Graphics: Manufactures pressure-sensitive vinyl films for signage and vehicle graphics.
7+ YOEBachelor's degree in computer science,7+ years relevant experience,knowledge of networks,Windows servers,VMware,Active Directory,network security,backup and disaster recovery,telecom,ITIL and strong communication skills.
VMware, Active Directory, Microsoft Outlook, Mimecast, Avaya
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