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50 windows administrator jobs at 34 companies in Oxnard, CA

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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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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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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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IT Systems Administrator Intern
Culver City, California, United States
OnsiteInternship
Servicon
Servicon: Provides professional cleaning and facility maintenance for complex environments.
Student in later stages of computer science/IT or related program; provide Tier 1/2 support for Windows and iOS, assist with onboarding/offboarding, MDM, Microsoft 365 administration, system maintenance, and documentation.
Windows, iOS, Mobile Device Management (MDM), Microsoft 365, HRIS
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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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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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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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Oracle Database Administrator (Onsite)
Santa Barbara or Vandenberg Space Force Base
OnsiteFull Time
Citizant
Citizant: Provider of professional IT services to the U.S. government.
8+ YOE8+ years in database administration; 5+ years Oracle (11g/12c+); Windows/UNIX; Oracle 12c, RMAN, PL/SQL; Security+ and OCP; active Secret clearance.
Oracle, RMAN, PL/SQL, Windows Server, UNIX, CRON, JOCAS II, DEAMS, GAFS
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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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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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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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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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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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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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2w
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IT Systems Administrator Intern
Culver City, California, United States
$22-$28/hr HybridTemporary, Part Time
Servicon
Servicon: Provides commercial cleaning and facility maintenance services.
Student-level candidate with foundational Windows and iOS knowledge; familiar with Active Directory/Azure AD, networking fundamentals, Microsoft 365; ability to provide Tier 1/2 support, assist onboarding/offboarding, and document IT procedures.
Windows 10, Windows 11, iOS, Active Directory, Azure Active Directory, DNS, DHCP, TCP/IP, Microsoft 365, Microsoft Intune, HRIS
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3w
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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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3w
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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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Commercial Operations Administrator
Marina Del Rey, California, United States
$60/hr OnsiteFull Time
University of Southern California
University of Southern California: Private research university providing higher education and healthcare services.
5+ YOEManage commercial interface for MOSIS including NDA/quote/PO/invoicing, CRM (HubSpot), order negotiation, accounts receivable, process improvement; bachelor's degree and 5 years' experience; must be US person.
HubSpot, Slack, Sun/Unix, VAX/VMS, DOS, Windows
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Maximo (MAS) Administrator
Ventura or United States
$100k-$140k/yr RemoteFull Time
VSolvit
VSolvit: Providing technology services and data solutions for government agencies.
2+ YOEBachelor's degree in CS or related; 2+ years MAS8/9 Admin, MAS7.x/EAM; OpenShift; WebSphere 8/9; Oracle 19c; PostgreSQL; MAS offerings; US citizen; Secret clearance; CompTIA Security+.
IBM Maximo MAS, OpenShift, Oracle 19c, PostgreSQL, WebSphere, Linux, Windows
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Seasonal, Operations Administrative Assistant (Part Time)
Chatsworth, California, United States
$18-$28/hr OnsiteMultiple Commitments Available
H&R Block
H&R BlockNYSE: HRB: Provides income tax preparation and small business financial services.
High school diploma or equivalent; customer service and administrative experience; strong communication, organization, decision-making, and Microsoft/Windows skills; ability to work independently in a high-volume environment.
Microsoft Teams, Microsoft Office, CoPilot, Windows
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