519 system administrator jobs at 344 companies in Garden Grove, CA

1w
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System Administrator
Altadena, California, United States
$40-$60/hr OnsiteFull Time
First City Credit Union
First City Credit Union: Provides banking and loan services to credit union members
4+ YOEBachelor's degree or equivalent experience and 4–5 years of system administration experience in financial services, a credit union, or another regulated environment. Relevant system and network certifications preferred.
Microsoft, VMware, CompTIA, CCNA, CCNP, CCSP
3mo
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System Administrator
Panorama City, California, United States
$40-$50/hr OnsiteFull Time
PureTek
PureTek: Manufactures pharmaceuticals, nutritional supplements, and personal care products.
3+ YOE3+ years IT support or system administration experience; strong Windows Server/Active Directory, Microsoft 365, endpoint support, networking, RMM, backup monitoring, troubleshooting, and documentation skills.
Windows Server, Active Directory, DNS, DHCP, Group Policy, File Server, Print Server, Microsoft 365, Exchange Online, Microsoft Teams, SharePoint, OneDrive, Entra ID, Windows 10, Windows 11, Microsoft Office, VPN, NinjaOne, Meraki, SentinelOne, Microsoft Defender, ERP, Power BI, RMM
4w
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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
2mo
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IS System Administrator
Temecula, California, United States
$123k-$135k/yr OnsiteFull Time
Universal Health Services
Universal Health ServicesNYSE: UHS: Operates acute care hospitals and behavioral health facilities.
IT systems administration; AD governance; Azure; VDI; enterprise infrastructure experience.
Active Directory, Azure, VMware Horizon, VDI, Enterprise Cloud Identity, Hypervisor
4w
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IT System Administrator
Los Angeles or El Segundo or Hawthorne
$80k-$100k/yr OnsiteFull Time
Freeform
Freeform: Deploys autonomous AI-powered metal 3D printing factories.
1+ YOE1+ years system administration experience with on-prem infrastructure, Windows/Linux administration, Active Directory/Azure AD, endpoint management (Intune,GPO), networking, AV support, lifting ability, and security-first mindset.
Kubernetes (k8s), Ansible, PowerShell DSC, AWS, Azure, GCP, Grafana, Prometheus, Python, Bash, PowerShell, Siemens Teamcenter, MATLAB, Visual Studio, Active Directory, Azure AD / Entra ID, Microsoft Intune, Group Policy (GPOs), SAN
1mo
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System Administrator - Level 4
Pasadena, California, United States
$107k-$160k/yr OnsiteFull Time
Sophia Space
Sophia Space: Modular data center hardware for in-orbit computing and AI.
5+ YOE5+ years systems administration experience supporting mixed macOS/Windows/Linux environments; strong identity/access, MDM, networking, troubleshooting, documentation, and automation skills (Python/Bash/PowerShell).
Apple Business Manager, Google Workspace, Microsoft Entra ID, Intune, Python, Bash, PowerShell, MDM, SSO, SAML, SCIM, MFA, RBAC, VPNs, VLANs, Wi-Fi, Linux, NIST 800-171, CMMC
5d
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System Administrator
El Segundo, California, United States
$76k-$144k/yr OnsiteFull Time
RTX
RTXNYSE: RTX: Provides advanced aerospace and defense systems and services.
2+ YOEUniversity degree or equivalent experience plus 2 years relevant experience, Windows or Linux experience, active Secret clearance, and U.S. citizenship. Must obtain CompTIA Security+ CE or equivalent within 6 months.
Microsoft Windows, Red Hat Enterprise Linux, ESXi, vCenter, Microsoft Active Directory, DNS, DHCP, Ansible, RAID
2mo
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System Administrator
Glendale, California, United States
$103k-$130k/yr OnsiteFull Time
Front Porch
Front Porch: Front Porch provides senior living and affordable housing communities.
2+ YOEMaintain and secure servers, networks, backups and monitoring; provide onsite and remote Tier I/II support, on-call coverage, and perform maintenance and disaster recovery tasks.
VMware, Windows Server, Linux, HPE, Pure, Veeam, Veeam Backup and Replication, Backup Exec, VMware Horizon, Citrix, Citrix NetScaler, Azure Windows Virtual Desktop, Active Directory, Exchange, Exchange Online, Group Policy, DNS, DFS, DHCP, SQL, PKI, SharePoint, SCCM, Azure, Skype for Business, Teams, ADFS, M365, Nagios, ManageEngine, Microsoft monitoring solutions, Cisco AnyConnect, iLO, TeamViewer, Remote Desktop, VNC, SSH, telnet, FTP, SDWAN
2mo
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System Administrator, IT Services
Calabasas, California, United States
$90k-$100k/yr OnsiteFull Time
AmaWaterways
AmaWaterways: Provides luxury river cruise vacations on international waterways.
3+ YOE3–5 years system administration experience; Associate's or Bachelor's in IT/CS/IS or equivalent; hands-on with VMware, Citrix, Microsoft 365/Entra, Azure/AWS, 8x8, Cisco, Intune, PowerShell, ITSM and backup/patch management; participates in on-call rotation.
VMware vSphere, ESXi, vCenter, Citrix Cloud, Citrix DaaS, Citrix Virtual Apps and Desktops, Microsoft 365, Microsoft Exchange Online, Microsoft Teams, Microsoft SharePoint Online, OneDrive, Active Directory, Microsoft Entra ID, Microsoft Azure, AWS, 8x8, Cisco, Windows Server, Linux, Microsoft Intune, Windows 10, Windows 11, macOS, ServiceNow, Jira Service Management, Freshservice, PowerShell, Microsoft Office, Veeam, Microsoft Teams Rooms
3mo
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System Security Administrator
Los Angeles, California, United States
HybridFull Time
Material
Material: Specialized inference cloud platform for high-performance AI workloads.
5+ YOEBS in CS/EE or related field; 5+ years systems engineering with cybersecurity; Microsoft administration; threat/endpoint monitoring; network security; MDM; PowerShell; relevant IT/cybersecurity certifications.
Microsoft Exchange, Entra ID, Purview, DLP, CrowdStrike, Darktrace, Fortinet, JAMF, PowerShell, Command-line
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
1d
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Site IT System Administrator
Chino, California, United States
$80k-$105k/yr HybridFull Time
Luna Innovations
Luna InnovationsOTC Markets: LUNA: Develops advanced fiber-optic sensing and optical testing solutions.
3+ YOERequires 3+ years in IT support or systems administration, Windows, Active Directory, networking, Windows Server, virtualization, asset and vendor management, and an associate-level IT education or equivalent experience.
Active Directory, Microsoft Entra ID, Windows Server, Microsoft 365, Microsoft Azure, VMware, Hyper-V, Microsoft Office, DNS, DHCP, VPN, Intune, SonicWall, CompTIA A+, CompTIA Network+, CompTIA Security+
2mo
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Senior System Administrator - Information Technology
Gardena, California, United States
$83k-$123k/yr OnsiteFull Time
Pipeline Health
Pipeline Health: Operates a network of community-based acute care hospitals.
7+ YOE7+ years IT systems experience and 5+ years healthcare experience. Strong background in routing, switching, firewall infrastructure, SD-WAN, hybrid cloud, virtualization, centralized storage, LAN administration, datacenter integration, security, and HIPAA compliance. Leadership/mentoring experience.
SD-WAN, hybrid cloud, AIDET
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
2w
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System Administrator
Los Angeles, California, United States
$60-$70/hr HybridContract
Cosm
Cosm: Operates immersive entertainment venues and develops shared reality technology.
5+ YOE5+ years infrastructure/system administration experience (media/VFX preferred). Expert Windows/Mac/Linux administration, system imaging, scripting (PowerShell/Bash/Python), render farm and storage management, AWS and monitoring tools.
Windows, Mac, Linux, WDS, WSUS, SCCM, ECM, PDQ Deploy, PowerShell, Bash, Python, HP Anyware, Parsec, Splashtop, Jump Desktop, Nuke, Resolve, Cinema 4D, Houdini, Thinkbox Deadline, AWS Deadline Cloud, RenderMan, LogicMonitor, Grafana, S3, EC2, VPC, Intune, Apple Business, JAMF Pro, Cisco Prime, Arista CloudVision, Aruba Central, Ruckus SmartZone
2mo
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Senior System Administrator - Information Technology
Gardena, California, United States
$83k-$123k/yr OnsiteFull Time
Pipeline Health
Pipeline Health: Manages community hospitals providing acute and emergency medical care.
7+ YOE7+ years IT systems experience (routing, switching, firewall) and 5+ years healthcare experience; expertise in multi-platform systems, virtual environments, centralized storage, LAN, SD-WAN, datacenter integration, network security, and regulatory compliance.
SD-WAN
2mo
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Senior System Administrator - Information Technology
Gardena, California, United States
$83k-$123k/yr OnsiteFull Time
Pipeline Health
Pipeline Health: Operator of acute care community hospitals and medical centers.
7+ YOESeven+ years IT systems experience (routing, switching, firewall); five+ years healthcare experience; strong knowledge of multi-platform systems, virtual environments, centralized storage, LAN, SD-WAN, datacenter integration, and network security; HIPAA/regulatory familiarity.
SD-WAN, AIDET
2mo
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Senior System Administrator - Information Technology
Gardena, California, United States
$83k-$123k/yr OnsiteFull Time
Pipeline Health
Pipeline Health: Operates community hospitals providing inpatient and outpatient medical services.
7+ YOERequires 7+ years of enterprise IT systems experience, 5+ years in healthcare, and expertise in routing, switching, firewalls, SD-WAN, hybrid cloud, storage, virtualization, and data center environments.
SD-WAN, hybrid cloud, routing, switching, firewall, virtual environments, centralized storage, local area network, cross-connects, circuit provisioning, datacenter
2mo
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Senior System Administrator - Information Technology
Gardena, California, United States
$83k-$123k/yr OnsiteFull Time
Pipeline Health
Pipeline Health: Operates community hospitals providing acute and emergency healthcare services.
7+ YOE7+ years IT systems experience, 5+ years healthcare IT experience, expertise in routing/switching/firewall, SD-WAN and hybrid cloud design, datacenter/colocation support, advanced troubleshooting, and regulatory/HIPAA knowledge.
SD-WAN, Cisco, Fortinet
2mo
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Senior System Administrator - Information Technology
Gardena, California, United States
$83k-$123k/yr OnsiteFull Time
Pipeline Health
Pipeline Health: Operates safety-net hospitals providing essential community healthcare services.
7+ YOE7+ years IT systems experience with enterprise routing, switching, and firewall infrastructure; 5+ years healthcare experience; SD-WAN, hybrid cloud, datacenter, LAN, virtualization, storage, advanced troubleshooting, HIPAA compliance; mentoring skills.
routing, switching, firewall, SD-WAN, hybrid cloud, virtual environments, centralized storage, local area network, datacenter