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126 systems administrator jobs at 89 companies in Oxnard, CA

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Founding Backend / Infra Engineer
Cupertino, CA, US
$160k-$300k/yr On-SiteFull Time
HiringCafe
HiringCafe: Building a 100× better job search engine to take on Indeed and LinkedIn.
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
Help us #BeatIndeed & #BeatLinkedIn
3d
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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.
5+ YOE5+ years identity/systems administration experience; Okta, Active Directory, Windows Server, endpoint management, access control, SSO/MFA, troubleshooting, documentation and audit support.
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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17h
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Senior Systems Administrator
Oxnard, California, United States
$70k-$120k/yr OnsiteFull Time
Swarm Aero
Swarm Aero: A building swarming unmanned aircraft and command-and-control software for large-scale autonomous operations.
5+ YOE5+ years systems/endpoint administration experience; strong hands-on experience with Entra ID/Azure AD, Microsoft 365, Intune, Jamf, onboarding/offboarding workflows, hardware lifecycle, and cross-layer troubleshooting.
Microsoft Entra ID, Microsoft Azure AD, Microsoft 365, Microsoft Exchange Online, Microsoft Intune, Jamf, Docker, AWS, PowerShell, Bash, Python
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2mo
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IT Systems Administrator
Van Nuys, California, United States
$90k-$120k/yr HybridFull Time
Aero
Aero: Premium semi-private jet flights between exclusive leisure destinations.
5+ YOE5+ years in IT engineering or systems administration; strong Google Workspace and Apple device management; Slack, Asana, and Metabase administration; scripting ability.
Google Workspace, Apple Business Manager, MDM, Mosyle, Slack, Asana, Metabase, Python, JavaScript, VPN, SAML, SSO
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1mo
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Sr. Principal Systems Administrator
El Segundo or United States
$118k-$225k/yr OnsiteFull Time
RTX
RTXNYSE: RTX: RTX provides advanced aerospace and defense systems and services.
8+ YOEU.S. citizen with active Secret DoD clearance, typically 8+ years' systems administration experience (or Advanced Degree +5 years). Experience with Red Hat Enterprise Linux, Microsoft Windows/AD, VMware, storage, backups, and security; CompTIA Security+ CE (DoDD 8140/8570) required within 6 months.
Red Hat Enterprise Linux, Active Directory, DNS, DHCP, VMware, VMware vCenter, vSphere, ESX, Splunk, Linux, Windows 10, Windows 11, Microsoft WSUS, Microsoft SCCM, Microsoft Exchange, NAS, SAN
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2w
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Business Application & Systems Administrator
Carpinteria, California, United States
$94k-$176k/yr HybridFull Time
Agilent Technologies
Agilent TechnologiesNew York Stock Exchange: A: Providing instruments, software, and consumables for laboratory scientific discovery.
4+ YOEBachelor's degree, 4+ years application administration, familiarity with validated systems, GxP and FDA 21 CFR Part 11 compliance, CSV experience, and strong communication and problem-solving skills.
Project & Portfolio Management, Electronic Lab Notebook, Lab Management, Image Management, Spotfire
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2d
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Systems Administrator II (Microsoft 365 GCC & GCC High)
Oxnard, California, United States
$95k-$120k/yr OnsiteFull Time
Systems Application & Technologies (SA-TECH)
Systems Application & Technologies (SA-TECH): Provides technical services and range operations for defense agencies.
3+ YOE3+ years Microsoft 365/Entra ID systems administration experience, PowerShell/Microsoft Graph scripting, Intune and core M365 workload administration, strong documentation and change-control discipline, valid US driver's license.
Microsoft 365 GCC, Microsoft 365 GCC High, Entra ID, Exchange Online, SharePoint Online, OneDrive, Teams, Intune, PowerShell, Microsoft Graph, Azure, Microsoft Purview, Defender
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1w
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RHEL 8 Linux Systems Administrator
El Segundo, California, United States
$120k-$160k/yr OnsiteFull Time
SAIC
SAICNYSE: SAIC: Provides engineering, IT, and mission support services to government.
5+ YOEActive Top Secret clearance with SCI/SAP eligibility, DoD 8140 certification (Security+/CISSP), 3+ years Linux administration (RHEL 8+), experience with air-gapped/high-security systems, Bash/Python scripting, and strong documentation skills.
RHEL 8, Bash, Python, Ansible, KVM, VMware, Podman, Docker, Kubernetes, SELinux, systemd, LVM, STIGs, CIS benchmarks
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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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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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2mo
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Classified Systems Administrator
El Segundo, California, United States
$95k-$143k/yr OnsiteFull Time
The Aerospace Corporation
The Aerospace Corporation: Provides technical expertise and research for national space programs.
15+ YOEExtensive Windows Server/AD, RMF/NIST 800-53, DoD 8570/8140 certs, TS/SCI with CI Poly, on-site in El Segundo, 15+ years with HS or 4+ with Master.
Windows Server, Active Directory, Windows Desktop, PowerShell, Ansible, Tenable ACAS, SCAP/STIG, RMF, NIST 800-53, DISA STIG, VMware, Hyper-V
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1w
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IT Systems Administrator-Collaboration Tools
Ventura, California, United States
$78k-$142k/yr OnsiteFull Time
The Trade Desk
The Trade DeskNASDAQ: TTD: Cloud-based programmatic advertising platform for data-driven media buying.
5+ YOEAdminister and automate collaboration, productivity, and AI platforms; troubleshoot complex issues; ensure security, compliance, and governance; 5+ years experience; PowerShell skills; ITIL and SOX experience desired.
Microsoft 365, Microsoft Exchange Online, Microsoft SharePoint Online, Microsoft OneDrive, Microsoft Power Platform, Microsoft Copilot Chat, Microsoft PowerShell, Slack, Zoom, Smartsheet, MPC Servers
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1w
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RHEL 8 Linux Systems Administrator
El Segundo, California, United States
OnsiteFull Time
SAIC
SAICNASDAQ: SAIC: Provides government and defense clients with technology and engineering services.
5+ YOEActive Top Secret/TS-SCI clearance, DoD 8140 certification (e.g., Security+, CISSP), 3+ years enterprise Linux (RHEL 8+) administration, Bash/Python scripting, SELinux/systemd/LVM knowledge, STIGs/CIS compliance, strong documentation skills.
RHEL 8, Bash, Python, SELinux, systemd, LVM, STIGs, CIS benchmarks, Ansible, KVM, VMware, Podman, Docker, Kubernetes
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3mo
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Global Payroll Systems Administrator
Thousand Oaks, California, United States
$97k-$129k/yr OnsiteFull Time
Teledyne Technologies
Teledyne TechnologiesNYSE: TDY: Manufactures sensors, cameras, and electronics for aerospace and defense.
5+ YOE5+ years payroll or HRIS experience in a global environment; ADP EV6/WFM experience; U.S. Person status.
ADP EV6, ADP WFM, HRIS, Payroll Systems
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15h
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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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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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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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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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6d
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Senior IT Administrator
El Segundo, California, United States
$99k-$117k/yr OnsiteFull Time
CesiumAstro
CesiumAstro: Develops phased array communication systems for satellites and aircraft.
5+ YOE5+ years IT support/systems administration, strong AD/Azure AD/Entra ID, M365 and Intune skills, AWS experience, IT security knowledge, advanced troubleshooting, and strong communication.
Active Directory, Azure AD/Entra ID, Microsoft Outlook, Microsoft Teams, Microsoft SharePoint, Microsoft OneDrive, Microsoft Purview, Intune, AWS, VPN
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