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269 windows system administrator jobs at 180 companies in California

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Sr. Windows System Administrator
Goleta, California, United States
$76k-$144k/yr OnsiteFull Time
RTX
RTXNYSE: RTX: RTX provides advanced aerospace and defense systems and services.
2+ YOEActive transferable DoD Secret clearance and U.S. citizenship required; typically 2+ years Windows/Linux systems administration; knowledge of AD, DNS, DHCP, backup/disaster recovery; must obtain DoDD 8140/8570 (CompTIA Security+ CE or equivalent) within 6 months.
RedHat Enterprise Linux, Microsoft Windows, Microsoft Active Directory, DNS, DHCP, MDT, WSUS, MECM, Windows 10, Windows 11, Horizon, MatLab, Green Hills, Doors, Subversion, AWS, Azure
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4w
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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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3d
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Windows & Linux System Administrator
San Diego, California, United States
$105k-$115k/yr OnsiteFull Time
Information Systems Solutions
Information Systems Solutions: Provides specialized IT services and engineering for federal agencies.
3+ YOERequires 3+ years administering Windows and RHEL systems, PowerShell and bash scripting, IAVM/STIG patching experience, Secret clearance, and IAT Level II certification.
Windows 11, RHEL, PowerShell, bash, Ansible, STIG, CTO, IAVM
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System Administrator
Modesto, California, United States
$95k-$120k/yr OnsiteFull Time
Stanislaus Food Products: Produces premium tomato products and olive oils for restaurants.
4+ YOE4+ years in systems or network administration; Windows/Linux/VMware; AD/Azure; Office 365; strong networking and security; ability to lead IT projects.
Windows Server, Linux, VMware, Active Directory, Azure Active Directory, Microsoft 365, Intune, Office 365, SharePoint, Teams, InTune, Jamf, MFA
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System Administrator
Oceanside, California, United States
$110k-$130k/yr OnsiteFull Time
MagnaFlow
MagnaFlow: Designs and manufactures automotive performance exhaust and suspension systems.
3+ YOE3+ years IT help desk/systems administration experience; B.S. in IT or equivalent experience; proficiency with Microsoft AD/O365, VMWare, Windows Server, Mac OS X, backup/recovery and security frameworks.
Microsoft Office 365, Microsoft Active Directory, VMWare, Windows Server, Mac OS X, Network Attached Storage (NAS), NIST Cybersecurity Framework (NIST CSF)
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System Administrator
Point Mugu, California, United States
$130k-$145k/yr OnsiteFull Time
ASEC
ASEC: Provides engineering and flight support services for military aviation.
5+ YOERequires U.S. citizenship, active DoD Top Secret clearance, CompTIA Security+, five years of related system administration experience preferred, VMware, Windows, DNS, policies, and Active Directory experience.
ACAS, Evaluate STIG, DISA STIG, FISMA, NIST 800-53, DoD SRG, vCenter, VMware, Windows, Linux, Host Based Security Systems (HBSS), Domain Name System (DNS), Microsoft Active Directory (AD), Windows PowerShell
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3mo
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System Administrator
Modesto, California, United States
$95k-$120k/yr OnsiteFull Time
Stanislaus Food Products
Stanislaus Food Products: Produces premium fresh-packed tomato products for independent restaurants.
4+ YOEMinimum 4 years of experience in systems or network administration; strong Windows/Linux/VMware knowledge; experience with Active Directory (on-premises and Azure), MFA, and Microsoft Intune; able to manage infrastructure and lead projects.
VMware, Windows Server, Linux, Azure Active Directory, Office 365, Intune, Jamf, ManageEngine
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2w
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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.
0+ YOEBachelor's or equivalent experience, DoD 8570 baseline certification (Security+), IAT Level II (or obtain within 6 months), Secret clearance, Linux/Windows Server, SolarWinds, VMware/ESXi experience, systems administration/cybersecurity experience.
Linux, SolarWinds, Windows Server, Active Directory, Group Policy, VMware, ESXi
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System Administrator
Redwood City or United States
$115k-$120k/yr HybridFull Time
Authentic8
Authentic8: Secure cloud-based web isolation and anonymous browsing software.
5+ YOE5+ years systems administration experience with macOS/Windows/Linux, MDM (Jamf/Intune), Azure/Okta, AD and networking; scripting (PowerShell/Bash); VMware and server administration; strong troubleshooting and documentation skills.
Jamf Pro, Microsoft Intune, Azure, GCP, Google Workspace, Okta, VMware vCenter, Windows Server 2019, Windows Server 2022, Linux, PowerShell, Bash, Parallels Desktop, Azure AD/Entra ID, SAML, SSO
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IT System Administrator
Irvine, California, United States
$97k-$119k/hr OnsiteFull Time
CTC Global
CTC Global: Manufactures advanced composite cores for high-voltage electricity transmission cables.
7+ YOE7+ years systems administration and infrastructure experience supporting Windows Server, virtualization, cloud, networking and OT (PLCs/SCADA); Bachelor\u0002s or equivalent experience; preferred networking and security certifications.
Windows Server, Active Directory, DNS, DHCP, VMware, Hyper-V, Azure, Microsoft M365, PLCs, SCADA, HMI, TCP/IP, VLANs, Firewall, VPN
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2w
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System Administrator 1
Sacramento, California, United States
$60k-$180k/yr OnsiteFull Time
M9 Solutions
M9 Solutions: Provides IT modernization and technology services to federal agencies.
0+ YOEActive TS/SCI clearance, IAT Level II (e.g., Security+), system administration experience, Windows patching and networking knowledge, flexible shift availability, bachelor's degree or equivalent experience.
Windows, Microsoft Excel, Microsoft Word, Microsoft Visio, Microsoft PowerPoint
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1mo
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System Administrator I
Long Beach, California, United States
$27-$32/hr OnsiteFull Time
VectorUSA
VectorUSA: An IT services providing onsite infrastructure support and technical delivery for enterprise clients.
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
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System Administrator I
Goleta, California, United States
$75k-$85k/yr OnsiteFull Time
Atomica
Atomica: Operates the largest MEMS foundry in the United States
2+ YOE2+ years IT systems support experience, Microsoft 365 administration, desktop (Windows/Linux/macOS), Active Directory, DELL/HP/Cisco hardware, documentation skills, customer-focused communication; PowerShell and cloud exposure preferred.
Microsoft 365, Windows, Linux, macOS, Active Directory, DELL, HP, Cisco, Microsoft PowerPoint, Microsoft Visio, Microsoft Word, Microsoft Excel, PowerShell, CRM, ERP, MES
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1mo
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Electronic Security IT System Administrator (System Administrator 2) - Fremont, CA
Fremont, California, United States
$100k-$150k/yr OnsiteFull Time
M.C. Dean
M.C. Dean: Design-build and systems integration for complex, mission-critical infrastructure.
2+ YOESystem administrator experience with Windows and Linux servers, access control/security systems, Windows patching/AD, networking basics; 2+ years experience (or equivalent), team management experience preferred; proficient in MS Office suite.
Windows, Windows Server, Linux, Red Hat, CentOS, Docker, Kubernetes, SQL, Cassandra, Mongo, Redis, AWS, Microsoft Excel, Microsoft Word, Microsoft Visio, Microsoft PowerPoint
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2mo
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System Administrator - Senior
Concord, California, United States
OnsiteFull Time
DecisionPoint
DecisionPoint: Provides IT and cybersecurity services for federal government agencies.
8+ YOEActive Secret clearance, HS diploma, 8+ years systems administration experience in DoD/federal environments; expertise with Windows Server, Active Directory, SCCM, virtualization, storage, backup, STIGs, and scripting; strong troubleshooting and documentation skills.
Windows Server, Active Directory, Group Policy, DNS, DHCP, SMTP, SCCM, PowerShell, JavaScript, VMware, NTFS, iSCSI, NFS
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1w
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System Administrator
Oakland or West Sacramento or California
FieldFull Time
SEIU Local 2015
SEIU Local 2015: Represents California long-term care workers through advocacy and bargaining.
4+ YOERequires 4–7 years administering enterprise systems, servers, networks, and infrastructure, including Windows Server, Active Directory, Exchange, network security, telecommunications, backups, and disaster recovery.
Microsoft Windows Server, Active Directory, Exchange, Voice over Internet Protocol (VoIP), Microsoft SQL Server
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System Administrator
Santa Rosa, California, United States
$39-$53/hr OnsiteFull Time
Exchange Bank
Exchange BankOTCPK: EXSR: Community bank providing personal, commercial, and trust banking services.
5+ YOE5+ years IT experience or equivalent, Bachelor in IT or similar, expertise with Windows Server, Active Directory, Exchange Online, VMware, VDI/Xen, networking, backups, and PowerShell; valid driver's license.
PowerShell, Windows Server, Active Directory, Exchange Online, Microsoft O365, VDI, Xen, VMware, VOIP, Routers, Switches
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2mo
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Core Infrastructure System Administrator (System Administrator 3)- Fremont, CA
Fremont, California, United States
$115k-$158k/yr OnsiteFull Time
M.C. Dean
M.C. Dean: Designs and builds cyber-physical systems for mission-critical facilities.
5+ YOESystem administration experience, Windows/Linux server management, AD and patching, 2+ years PACS programming, Security+/CASP/CISSP, networking/VLANs knowledge, team leadership experience, flexible schedule, up to 25% travel.
Windows, Linux, Active Directory, Microsoft Excel, Microsoft Word, Microsoft Visio, Microsoft PowerPoint, VLANs, Physical Access Control Systems
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Lead System Administrator
Vandenberg Space Force Base, California, United States
$95k-$125k/yr OnsiteFull Time
Amentum
AmentumNYSE: AMTM: Global provider of engineering, technical, and mission support services.
5+ YOEBachelor’s degree or equivalent education and experience; 5+ years with systems security and networking; Linux, Windows Server, Active Directory, VMware, Cisco IOS; Security+ and Secret clearance eligibility required.
Linux, Windows Server, Active Directory, VMware, vSphere, vCenter, Cisco IOS
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2mo
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System Administrator III
Rancho Mirage, California, United States
$45-$69/hr HybridFull Time
Eisenhower Health
Eisenhower Health: Provides comprehensive medical care and hospital services in California.
8+ YOEBachelor's in IT or 4+ years experience, 8+ years as System Administrator, advanced certifications (Citrix, SAN, CCNA, CISSP, etc.), Epic ECSA if assigned, strong systems, storage, virtualization and security skills.
LANDesk, Microsoft Exchange, Microsoft Active Directory, DHCP, DNS, Microsoft Group Policy, Microsoft Certificate Services, PXE, Citrix, VMware vSphere, P2V, P2P, Symantec Endpoint, sys-prep, PRTG, Active Administrator, bash, vb-script, Windows DSC, Cisco UCS, CommVault, VNX, XtremIO, Isilon, Epic, SAN, Microsoft Windows Server, Microsoft Windows 10, Apple iOS, Apple OSx, Linux
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