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114 windows system administrator jobs at 82 companies in Buena Park, CA

1mo
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Classified Windows System Administrator
El Segundo or Chantilly
$75k-$113k/yr OnsiteFull Time
The Aerospace Corporation
The Aerospace Corporation: Provides independent technical research and advisory services for space programs.
3+ YOETS/SCI clearance and U.S. citizenship required. 3+ years enterprise Windows administration, 2+ years virtualization (VMware or Hyper-V). Must meet DoD 8570.01-m IAT Level II (CompTIA Security+). Experience with Citrix, Active Directory, NFS, and EM environments preferred.
Citrix, Windows Terminal Server, VMware, Hyper-V, Windows Admin Center, MS SQL, Puppet, PowerShell DSC, Ansible, Bash, PowerShell, Terraform, Python, NFS, Active Directory
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2mo
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Principal System Administrator Windows or Linux
El Segundo, California, United States
$96k-$182k/yr OnsiteFull Time
RTX
RTXNYSE: RTX: Aerospace and defense providing advanced technology solutions.
5+ YOEActive transferable U.S. Top Secret clearance and U.S. citizenship required; typically 5+ years relevant experience (or 3+ with advanced degree); experience with Microsoft Windows and/or RedHat Enterprise Linux, ESXi/vCenter, Windows domains, DNS/DHCP/AD, backups, hardware RAID, containers, and cybersecurity; must obtain DoDD 8140/8570 (CompTIA Sec...
Microsoft Windows, RedHat Enterprise Linux, ESXi, VCenter, Windows Server, Ansible, DNS, DHCP, AD
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1d
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System Administrator II
Colorado Springs or Irvine or Denver or Indianapolis or Grand Rapids or Lexington or Los Angeles or Louisville or Texas or San Francisco or United States
$105k-$115k/yr OnsiteFull Time
Trace3
Trace3: Private IT consulting provider serving enterprise and commercial organizations with AI, cloud, data, and cybersecurity services.
3+ YOEBachelor's degree or equivalent experience; 3–5 years of system administration experience; Windows/Linux, enterprise infrastructure, cybersecurity, cloud, automation, and compliance experience; Secret clearance eligibility; DoD 8570 IAT Level II certification.
Windows, Linux, Active Directory, DNS, DHCP, Group Policy, VMware vSphere, ESXi, Hyper-V, Azure, AWS, GCC High, PowerShell, Bash, Python, Ansible, SCCM/MECM, Chef, Puppet, STIG, SCC, IAVA, NIST 800-53, FedRAMP, CMMC, RMF
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15h
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Cloud System Administrator
Los Angeles, California, United States
HybridFull Time
Salt Productions
Salt Productions: Salt Productions is a private experiential production agency creating in-person brand experiences and events for clients worldwide.
1+ YOEIT systems administration experience, cloud infrastructure support, networking fundamentals, shell and Python scripting, professional Mac, Windows, or Linux administration, and Google Cloud Platform familiarity.
Google Cloud Platform (GCP), Compute Engine, IAM, Cloud Storage, VPC, Cloud Monitoring, Ansible, Terraform, Grafana, Python, Mac, Windows, Linux, TCP/IP, DNS, VPN, firewalls, routing, SaaS
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1w
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Senior System Administrator
Playa Vista, California, United States
$97k-$154k/yr OnsiteFull Time
Inversion Space
Inversion Space: Privately held aerospace building autonomous reentry vehicles for defense, logistics, and rapid cargo delivery from orbit.
5+ YOERequires 5+ years’ comparable experience, secure or defense environment experience, cloud, virtualization, networking, Windows/Linux administration, troubleshooting, and ability to obtain a U.S. government Secret/Top Secret clearance.
AWS, Microsoft Azure, Google Cloud Platform (GCP), Windows, Linux, Red Hat Enterprise Linux (RHEL), Docker, Kubernetes, PowerShell, Bash, Ansible, Terraform, AWS DevOps, AWS Solutions Architect, Google Professional Cloud Architect, Azure DevOps, Azure Solutions Architect
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1w
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Site IT System Administrator
Chino, California, United States
$80k-$105k/yr HybridFull Time
Luna Innovations
Luna InnovationsOTC Expert Market: LUNA: Fiber-optic technology providing sensing, test, measurement, monitoring, and control systems for industrial customers.
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+
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3mo
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IT System Administrator
Commerce, California, United States
$55k-$59k/yr OnsiteFull Time
Wesley Health Centers
Wesley Health Centers: Nonprofit federally qualified health center serving underserved Los Angeles County residents with healthcare and supportive services.
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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1mo
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IT System Administrator
Los Angeles or El Segundo or Hawthorne
$80k-$100k/yr OnsiteFull Time
Freeform
Freeform: AI-native metal 3D-printing manufacturer serving aerospace, defense, energy, semiconductor, automotive, and other industrial customers.
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
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2mo
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System Administrator - Level 4
Pasadena, California, United States
$107k-$160k/yr OnsiteFull Time
Sophia Space
Sophia Space: Private orbital computing building AI systems and in-space data centers for defense, government, and commercial customers.
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
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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: Developing commercial space stations for permanent human presence.
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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1mo
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System Administrator
Los Angeles, California, United States
$60-$70/hr HybridContract
Cosm
Cosm: Immersive entertainment, media, and technology operating shared-reality venues for sports, entertainment, art, and education.
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
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2mo
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System Administrator
Glendale, California, United States
$103k-$130k/yr OnsiteFull Time
Front Porch Communities and Services
Front Porch Communities and Services: Nonprofit organization dedicated to human-centered senior living.
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
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2mo
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System Administrator, IT Services
Calabasas, California, United States
$90k-$100k/yr OnsiteFull Time
AmaWaterways
AmaWaterways: Luxury river cruise line serving travelers with immersive, family-run journeys across Europe, Asia, Africa and South America.
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
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3w
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System Administrator - Level II (Database Skills)
Camp Pendleton, California, United States
OnsiteFull Time
3 Reasons Consulting
3 Reasons Consulting: Woman- and service-disabled veteran-owned cybersecurity and Health IT consulting firm serving healthcare organizations and government agencies.
4+ YOE4+ years in systems administration, patch management, and backup operations in Microsoft environments; DoD or government experience, IAT Level II certification, active Secret clearance, and Tier 1 investigation eligibility required.
Microsoft 365, Adobe, Java, Microsoft Endpoint Configuration Manager (MECM), Microsoft Operating Systems, Group Policy Objects (GPOs), FIPS, ITIL, STIG
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2w
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Systems Administrator
Brea, California, United States
$85k-$120k/yr OnsiteFull Time
Air Treatment Corporation
Air Treatment Corporation: Employee-owned HVAC and refrigeration manufacturer’s representative serving engineers, contractors, building owners, and commercial facilities.
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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2w
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Systems Administrator
Woodland Hills, California, United States
$105k-$115k/yr OnsiteFull Time
Los Angeles Rams
Los Angeles Rams: Privately held professional American football team competing in the National Football League.
5+ YOERequires 5+ years of systems administration experience, Microsoft enterprise technologies, hybrid cloud, identity platforms, Windows Server, virtualization, Intune, PowerShell, networking, and monitoring platforms.
Microsoft 365, Microsoft Entra ID, Active Directory, Exchange Online, Microsoft Teams, Microsoft SharePoint Online, Windows Server, VMware, Hyper-V, Microsoft Intune, PowerShell, SAML, SCIM, SSO, DNS, DHCP, SMB, iSCSI, Azure, Linux, Red Hat Enterprise Linux, SQL, Databricks, Jira Service Management
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1w
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Systems Administrator
Santa Clarita, California, United States
$32-$37/hr OnsiteFull Time
California Institute of the Arts
California Institute of the Arts: Provides degree programs across visual and performing arts.
3+ YOEThree years of relevant systems administration experience preferred in academia; expertise with Mac, Windows, and Unix; Microsoft Office, Google, and Adobe applications; hardware troubleshooting and communication skills.
Mac, Windows, Unix, Microsoft Office, Google, Adobe
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1w
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Systems Administrator
La Jolla or Temecula or El Segundo or Beverly Hills or Newport Beach or San Diego or San Diego or California
$91k-$122k/yr OnsiteFull Time
CalPrivate Bank
CalPrivate Bank: Private commercial and private bank serving successful individuals, businesses, entrepreneurs, and trusted advisors in coastal Southern California.
Several years of systems administration or enterprise IT support experience, with strong Windows Server, Active Directory, VMware, Entra ID, Intune, networking, backup, security, troubleshooting, and documentation expertise.
Active Directory, VMware, Microsoft Entra ID, Microsoft Intune, DHCP, DNS, Windows Server, Group Policy, IAM, PAM, VPN, LAN/WAN, TCP/IP
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1w
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Systems Administrator
Santa Clarita, California, United States
$32-$37/hr OnsiteFull Time
California Institute of the Arts
California Institute of the Arts: Provides degree programs across visual and performing arts.
3+ YOEThree years of relevant systems administration experience, preferably academic; expertise with Mac, Windows, and Unix; Microsoft Office, Google, and Adobe proficiency; related undergraduate degree or equivalent experience.
Mac, Windows, Unix, Microsoft Office, Google, Adobe
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3mo
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IT Systems Administrator
Seal Beach, California, United States
$86k-$150k/yr OnsiteFull Time
AstroForge
AstroForge: Private U.S. asteroid-mining extracting platinum-group metals and critical minerals for Earth.
3+ YOE3+ years in IT systems administration with cross-platform support (macOS, Windows, Linux); network administration; IAM; cloud and SaaS management; ITAR/CMMC awareness.
macOS, Windows, Linux, routing, switching, VPNs, firewalls, wireless, Active Directory, Azure AD, Okta, AWS, GCP, Azure, Google Workspace, Microsoft 365, Slack, Zoom, GitHub, Bash, PowerShell, Python, Jamf, Intune, NIST CSF, CIS Controls, CompTIA Security+, Network+
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