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34 windows system administrator jobs at 22 companies in Oxnard, CA

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Cupertino, CA, US
$160k-$300k/yr On-SiteFull Time
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Own the crawlers, pipelines, and infrastructure powering a real-time job search engine. Strong Node.js and Python fundamentals; bonus points for security and reverse-engineering chops.
Node.js, Python, Elasticsearch, Redis
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4d
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Classified Windows System Administrator
El Segundo or Chantilly
$75k-$113k/yr OnsiteFull Time
The Aerospace Corporation
The Aerospace Corporation: Provides technical expertise and research for national 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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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
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1mo
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Principal System Administrator Windows or Linux
El Segundo, California, United States
$96k-$182k/yr OnsiteFull Time
RTX
RTXNYSE: RTX: Provides advanced aerospace and defense systems and services.
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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1w
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System Administrator
Port Hueneme, California, United States
$40k-$80k/yr OnsiteFull Time
SAIC
SAICNYSE: SAIC: Provides engineering, IT, and mission support services to government.
2+ YOEBachelors +2 years (or 6 years experience) and DoD 8570 cybersecurity certifications; IAT Level II (or obtain within 6 months); Secret clearance; Linux, Windows Server, virtualization, SolarWinds experience required.
Linux, SolarWinds, Windows Server, Active Directory, Group Policy, vmWare, ESXi
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1w
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System Administrator
Port Hueneme, California, United States
OnsiteFull Time
SAIC
SAICNASDAQ: SAIC: Provides government and defense clients with technology and engineering services.
2+ YOEBachelors +2 years (or 4 additional years experience), DoD 8570 baseline cert (Security+), IAT Level II or ability to obtain, experience with Linux, SolarWinds, Windows Server, Active Directory, virtualization (vmWare/ESXi), Secret clearance.
Linux, SolarWinds, Windows Server, Active Directory, Group Policy, vmWare, ESXi
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4d
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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
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2w
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Information System Administrator
Thousand Oaks or Camarillo
$78k-$104k/yr OnsiteFull Time
Teledyne Technologies
Teledyne TechnologiesNYSE: TDY: Manufactures sensors, cameras, and electronics for aerospace and defense.
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
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1mo
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System Administrator (System Administrator, willing to consider all levels)
Goleta, California, United States
$85k-$145k/yr HybridFull Time
Redwire
RedwireNYSE: RDW: Manufactures infrastructure and hardware components for diverse space missions.
2+ YOEProvide IT support and systems administration in a hybrid Active Directory/Azure AD environment; desktop, server, network troubleshooting; must have or obtain CompTIA Security+ within 90 days; 2+ years IT experience or equivalent.
Microsoft Office 365, Microsoft Azure Active Directory, Microsoft Active Directory, Windows Server, Windows 10, Windows 11, macOS, Linux, VLAN, Zero Trust Architecture, 802.1x, Microsoft Teams
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1mo
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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
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1mo
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Network System Administrator
El Segundo, California, United States
$108k-$179k/yr OnsiteFull Time
ManTech
ManTech: Provides technology solutions for defense and intelligence agencies.
6+ YOEActive Top Secret/SCI clearance, 6+ years related experience (4+ years SCI/SAP), bachelor’s in technical field or equivalent experience, IAT Level II within 6 months, experience administering Windows server environments and backups.
Microsoft Windows Server, Microsoft Exchange Server, Windows XP, Windows Vista
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Systems Administrator
Simi Valley, California, United States
$101k-$153k/yr OnsiteFull Time
AeroVironment
AeroVironmentNASDAQ: AVAV: Designs and manufactures unmanned aircraft and tactical missile systems.
8+ YOE8+ years experience in identity and systems administration; Okta and Active Directory administration; Windows Server and endpoint support; strong troubleshooting, documentation, and collaboration skills.
Okta, Jamf, Active Directory, Windows Server, Microsoft Entra ID, Microsoft 365, PowerShell
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1mo
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Systems Administrator
Port Hueneme, California, United States
$108k-$145k/yr OnsiteFull Time
Resource Management Concepts
Resource Management Concepts: Provides IT, cybersecurity, and engineering solutions to government agencies.
3+ YOEBachelor's in CS/IS/Engineering, 3+ years systems administration experience, active Top Secret (T5) clearance, IAT Level II (DoD 8570/8140) certification required; experience with Windows/Linux, virtualization, and cybersecurity.
Windows, Linux, firewalls, antivirus solutions, intrusion detection systems, virtualization
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2w
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Senior Systems Administrator - Desktop
Port Hueneme, California, United States
$95k-$135k/yr OnsiteFull Time
HII
HIINYSE: HII: Builds naval ships and provides global defense technology solutions.
5+ YOEActive TS/SCI clearance required; 5+ years desktop administration; expertise with Windows/ThinLinux, Citrix Zendesktop, appV, Windows Terminal Services, MECM/SCCM, endpoint security, SRG/STIG security baselines, hardware/software lifecycle and troubleshooting.
Windows, ThinLinux, Citrix Zendesktop, appV, Windows Terminal Services, MECM, SCCM
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1mo
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Senior Cloud Administrator
Culver City, California, United States
$135k/yr OnsiteFull Time
Security Industry Specialists
Security Industry Specialists: Provides specialized security solutions for corporations and high-profile clients.
7+ YOEBachelor's degree or equivalent, 7+ years systems administration experience with cloud/SaaS (Google Workspace, Box, AWS, Microsoft Azure) in a predominantly macOS environment; identity and access management (Active Directory/Entra ID, Okta/Ping/JumpCloud), JAMF, SentinelOne, Cisco Meraki, SIEM, and ITIL experience.
Google Workspace, Box, AWS, Microsoft Azure, macOS, Windows, Active Directory, Entra ID, Okta, Ping, JumpCloud, Jamf, SentinelOne, Windows MDM, Cisco Meraki, SIEM
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4w
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IT Systems Administrator - Millennium Space Systems
El Segundo, California, United States
$103k-$174k/yr OnsiteFull Time
Boeing
BoeingNYSE: BA: Designing and manufacturing commercial aircraft and defense systems.
Maintain and configure secure enterprise and air-gapped systems; administer Windows Server, VMware, and Red Hat Linux; obtain DoD IAT/ Security+ certifications; active U.S. TS/SCI security clearance required.
Windows Server, Windows 10, VMware vCenter, VMware vSphere, Red Hat Linux, Active Directory (AD), VEEAM Backup Suite, Power Protect Data Manager, Cisco, Palo Alto, Juniper, DNS, Group Policy, Microsoft Outlook, Microsoft Word, Microsoft Excel, Microsoft Project, DoD STIGs
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4w
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IT Systems Administrator - Millennium Space Systems
El Segundo, California, United States
$103k-$174k/yr OnsiteFull Time
Boeing
BoeingNYSE: BA: Designs and manufactures aircraft, defense systems, and space technology.
Maintain and administer secure enterprise and air-gapped systems (Windows Server, VMware, Red Hat Linux); provide Tier II support; maintain documentation; must hold an active U.S. Top Secret/SCI clearance and be a U.S. Person.
Windows Server, Windows 10, VMware vCenter, vSphere, Red Hat Linux, Active Directory, DoD STIGs, Cisco, Palo Alto, Juniper, VEEAM Backup Suite, Power Protect Data Manager, DNS, Group Policies, Microsoft Outlook, Microsoft Word, Microsoft Excel, Microsoft Project
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1d
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Senior Network and Computer Systems Administrator
Camarillo, California, United States
$130k-$140k/yr OnsiteFull Time
Saalex
Saalex: Provides engineering, IT, and mission support for defense agencies.
5+ YOE5+ years administering enterprise Windows Server and Linux environments; experience with AD, DNS, DHCP, DISA STIGs, patch management, SQL, PowerShell automation; strong troubleshooting and communication skills.
Microsoft Windows Server, Linux, Microsoft Active Directory, DNS, DHCP, Group Policy Objects (GPOs), DISA STIG, SQL, PowerShell, Python
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2mo
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#2651 Network Systems Engineer (NE30)
Port Hueneme, California, United States
$93k-$110k/yr OnsiteFull Time
AdvantEdge Technology
AdvantEdge Technology: Provides engineering and technical support services for naval systems.
4+ YOEFull-time network systems engineer with 4+ years of network administration experience or 10+ years with no degree; Windows/Linux, certifications; able to document and support network hardware and systems.
Windows Server, Linux, Unix, Red Hat Linux, Microsoft Office, Azure Fundamentals, LPIC
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1mo
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Medical Assistant - West Valley Specialty Clinic
West Hills, California, United States
$29-$39/hr OnsiteFull Time
UCLA Health
UCLA Health: Provides comprehensive hospital services and academic medical research.
0.5+ YOEMedical assistant diploma or national MA certification, BLS required, 6+ months MA experience, ability to perform injections, venipuncture, vitals, medication administration, and use Windows-based patient systems.
Windows
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2d
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IT Systems Specialist (5 month assignment)
Camarillo, California, United States
$26-$31/hr OnsiteFull Time, Contract
Johanson Technology
Johanson Technology: Designs and manufactures high-frequency ceramic electronic components.
2+ YOE2+ years IT support with Microsoft 365, Windows 10/11, hardware troubleshooting, TCP/IP networking, mobile OS support, documentation, and basic cloud administration (Entra ID, Exchange Online, SharePoint).
Microsoft 365, Microsoft Outlook, Microsoft Word, Microsoft Excel, Microsoft Windows 10, Microsoft Windows 11, Microsoft Entra ID, Microsoft Exchange, Microsoft SharePoint, Microsoft Teams, PowerShell, Python, Avaya VOIP, Hudu, Ninja, FixMe.IT, VPN
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