417 system administrator jobs at 263 companies in Acton, CA
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System Administrator
Altadena, California, United States
$40-$60/hr OnsiteFull Time
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
1mo
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System Administrator I
Long Beach, California, United States
$27-$32/hr OnsiteFull Time
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
3w
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IT System Administrator
Los Angeles or El Segundo or Hawthorne
$80k-$100k/yr OnsiteFull Time
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
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
1mo
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System Administrator, IT Services
Calabasas, California, United States
$90k-$100k/yr OnsiteFull Time
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
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
1mo
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Information System Administrator
Thousand Oaks or Camarillo
$78k-$104k/yr OnsiteFull Time
5+ YOE5+ years system administration in classified/government environments; expertise in Windows Server, Active Directory, virtualization, enterprise storage, Cisco networking, cybersecurity frameworks (RMF/NIST), and DoD 8140 IAT Level II (Security+ or higher); active Secret clearance and U.S. citizenship required.
Windows Server, Active Directory, VMware, Hyper-V, Dell EMC Unity, Cisco, IDS/IPS, RMF, NIST 800-53, ITIL, Linux
2mo
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Senior Network System Administrator`
Agoura Hills, California, United States
$98k-$115k/yr HybridFull Time
5+ YOESenior IT role requiring 5+ years in network/system administration, Azure AD/Entra, Fortinet, Intune, 3+ IT certifications.
Microsoft Entra ID (Azure AD), Fortinet FortiGate/EMS/FortiClient, Microsoft Intune, Microsoft 365, PowerShell, APIs, Azure, SAML, SSO, SSL
2mo
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Senior System Administrator - Information Technology
Gardena, California, United States
$83k-$123k/yr OnsiteFull Time
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
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
1w
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System Administrator
Los Angeles, California, United States
$60-$70/hr HybridContract
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
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
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
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
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
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
2mo
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Senior System Administrator - Information Technology
Gardena, California, United States
$83k-$123k/yr OnsiteFull Time
7+ YOERequires 7 years of IT systems experience, including enterprise routing, switching, and firewall infrastructure, plus 5 years of healthcare experience. Requires expertise in LANs, SD-WAN, hybrid cloud, datacenters, storage, virtualization, and network security.
SD-WAN, HIPAA
1w
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Principal Windows System Administrator
El Segundo, California, United States
$96k-$182k/yr OnsiteFull Time
5+ YOERequires 5+ years relevant experience or an advanced degree with 3+ years, active Secret clearance, U.S. citizenship, Windows administration experience, and Security+ CE or equivalent within 6 months.
Active Directory, Exchange, WSUS, Hyper-V, VMware, Group Policy, Ivanti, Splunk, Tenable, Symantec, Nessus, HPE MSA, NetApp, DNS, DHCP, VMware vCenter, vSphere, ESXi, Virtual Desktop Infrastructure (VDI), Microsoft Hypervisor
1mo
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Sr Principal System Administrator
Edwards Air Force Base, California, United States
$129k-$194k/yr OnsiteFull Time
6+ YOEBachelor's +8 yrs or Master's +6 yrs experience, ability to obtain/maintain DoD SECRET clearance, CompTIA Security+, HP 3PAR, Cisco, STIG, Microsoft Office/Visio/Project/PowerPoint/Excel, lift 40 lbs, ability to work after hours/weekends.
HP 3PAR, Cisco, STIG, Microsoft Office, Microsoft Visio, Microsoft Project, Microsoft PowerPoint, Microsoft Excel
1mo
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Sr Principal System Administrator
Edwards Air Force Base, California, United States
$129k-$194k/yr OnsiteFull Time
6+ YOEBachelor's +8 yrs or Master's +6 yrs, ability to obtain/maintain DoD SECRET clearance, CompTIA Security+ required, experience with HP 3PAR, Cisco, STIG compliance, Microsoft Office suite, ability to lift 40 lbs and work after hours/weekends.
HP 3PAR, Cisco, STIG, Microsoft Office, Microsoft Visio, Microsoft Project, Microsoft PowerPoint, Microsoft Excel
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