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115 windows administrator jobs at 86 companies in Fairfield, CA

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Systems Administrator
San Leandro, California, United States
OnsiteFull Time
Lahlouh
Lahlouh: Provides commercial printing, packaging design, and marketing fulfillment services.
5+ YOE5+ years systems administration in multi-site production environments; Windows Server, AD, DNS, DHCP, VMware, NetApp, Veeam, Microsoft 365 experience; strong networking and security skills.
Windows Server, Active Directory, Group Policy, DNS, DHCP, VMware vSphere/ESXi, NetApp, Veeam, Prinect, PACE, VeraCore, Microsoft 365, Microsoft Exchange Online, Microsoft Teams, Microsoft Intune, Microsoft Entra ID, IPsec, PowerShell, Python, Bash, AWS, Azure, Google Cloud
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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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Unix Systems Administrator
Fremont, California, United States
$125k-$135k/yr OnsiteFull Time
ISE Labs
ISE LabsNYSE: ASX: Provides semiconductor test and engineering services to manufacturers.
2+ YOEProvide Unix and Windows systems administration, troubleshoot hardware/software/network issues, support users, perform system maintenance, and document incidents. Requires 2+ years experience and degree in a related field.
Windows Operating Systems, Microsoft Outlook, Microsoft Office, Switches, routers, VPN, Microsoft Exchange Server, SunOS, Solaris, HPUX, UNIX, C, C++, Perl
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Server Administrator
Sacramento County, California, United States
$7k-$11k/mo HybridFull Time
State Controller's Office
State Controller's Office: California's fiscal controller managing state financial operations and assets.
Experience with systems administration, virtualization, Microsoft Active Directory, Microsoft Windows Server, technical documentation, help desk support, and troubleshooting; California classification examination eligibility required.
Microsoft Active Directory, Microsoft Windows Server
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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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Systems Administrator
Fremont or Seattle
$105k-$125k/yr OnsiteFull Time
Cytek Biosciences
Cytek BiosciencesNASDAQ: CTKB: Manufacturer of spectral flow cytometry instruments and biological reagents.
10+ YOE10+ years in systems/network administration managing Windows/Linux servers, virtualization (VMware/Hyper-V), cloud (Azure/AWS), networking, AD/Group Policy, VPN, backup/DR, and multi-site infrastructure.
VMware, Hyper-V, Azure, AWS, Cisco AnyConnect, DNS, DHCP, DUO, Active Directory, Group Policy, NetSuite, Salesforce, Propel, Docker, PowerShell, Bash, Python, TCP/IP
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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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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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3mo
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Systems Administrator
Dublin, California, United States
OnsiteFull Time
PingWind
PingWind: Provides cybersecurity and IT infrastructure services to government agencies.
5+ YOEActive DoD TS/SCI with CI poly, 5+ years in classified IT/networking, Windows Server and virtualization experience, DoD cybersecurity standards, DoD 8570/8140 IAT Level II, shift-based 24/7 support.
Windows Server, Virtualization, Routing and Switching, Type 1 encryption devices, DISA STIGs, IAVAs
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System Administrator 1 - Sacramento, CA
Sacramento, California, United States
$83k-$114k/yr OnsiteFull Time
M.C. Dean
M.C. Dean: Design-build and systems integration for complex, mission-critical infrastructure.
0+ YOEActive TS/SCI clearance with polygraph eligibility and U.S. citizenship required. Requires BS with 0+ years or high school diploma with 6+ years, system administration experience, IAT Level II certification, and Windows, networking, and Microsoft Office skills.
Microsoft Excel, Microsoft Word, Microsoft Visio, Microsoft PowerPoint, Windows, VLAN, SOP, CCTV, PSIM, IAVA, STIG
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Associate Systems Administrator
Dublin, California, United States
OnsiteFull Time
Ross Stores
Ross StoresNASDAQ: ROST: Discount retail chain selling brand-name apparel and home fashions
2+ YOE2+ years supporting retail and distribution center systems; strong networking, Windows/UNIX, WCS and warehouse/distribution systems experience; familiarity with DC hardware, cabling and backup/storage (Hitachi SAN) and SCCM.
WCS, Dematic, Inteligrated, Crisplant, Hitachi SAN, SCCM, UNIX, Windows, VoIP, VPN, CAT5, Cat 6, fiber optics
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IT & Security Administrator
San Francisco or Cambridge
OnsiteFull Time
Lumafield
Lumafield: Accessible industrial CT scanners and cloud-based analysis software
3+ YOE3+ years IT systems/endpoint administration experience; macOS, Windows, Linux support; identity and access management; MDM and endpoint tooling; networking and hardware troubleshooting; support SOC 2/ISO/ITAR compliance.
Google Workspace, Rippling, SentinelOne, Vanta, Kandji, Jamf, Iru, Docker, GitHub, OPNsense, UniFi, Tailscale, Slack, Zoom, Neat, AWS, MDM
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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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Senior Server Administrator
San Francisco, California, United States
$130k-$180k/yr HybridFull Time
University of California, San Francisco
University of California, San Francisco: Public research university dedicated to health sciences and education.
5+ YOEBachelor's degree in computer science, engineering, or computer information systems and 5 years of enterprise server administration, including IBM AIX, RHEL, virtualization, disaster recovery, and automation.
IBM AIX, IBM POWER, Red Hat Enterprise Linux (RHEL), IBM PowerHA, PowerVM, Ansible, Secure File Transfer Protocol (SFTP), Managed File Transfer (MFT), GoAnywhere, Terraform, Chef, Puppet, Microsoft Windows, VMware, Citrix, Epic
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Network & Systems Administrator
Sydney or Manila or London or Vancouver or San Francisco
OnsiteFull Time
Escrow.com
Escrow.comAustralian Securities Exchange: FLN: Secure online escrow and payment services for high-value transactions.
Senior hands-on sysadmin with end-to-end IT support experience across Windows/macOS/Linux, networking (firewalls, VPNs, VLANs), backups, monitoring, Google Workspace administration, scripting (Python/Bash) and strong documentation and communication skills.
Synology NAS, Google Workspace, GAM, OPNsense, pfSense, UniFi, AWS, Terraform, Puppet, Prometheus, Python, Bash, IPsec VPNs, DNS
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System/ Network Administrator
Sacramento, California, United States
$86k-$138k/yr OnsiteFull Time
Peraton
Peraton: National security and mission-critical government technology services provider.
5+ YOEBachelor’s degree and 5 years of network and systems administration experience, including 2 years in public safety, government, or critical infrastructure. Requires CCNA, U.S. citizenship, Cisco networking, ITSM, Windows Server, Linux, and on-call availability.
SolarWinds, PRTG, Nagios, Microsoft Windows Server, Linux, ServiceNow, Remedy, Cisco IOS, Cisco IOS-XE, Cisco ASA, Cisco FTD, Palo Alto, Fortinet, Cisco Viptela, VMware VeloCloud, OSPF, BGP, EIGRP, STP, VLANs, IPAM, SD-WAN, VPN, IDS/IPS, DNS, DHCP, QoS
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Associate Systems Administrator (R5436)
San Francisco, California, United States
$89k-$130k/yr OnsiteFull Time
Shield AI
Shield AI: Develops autonomous flight software and unmanned aircraft for defense.
5+ YOE5+ years systems/enterprise IT experience, 3+ years supporting executives, experience with Windows/macOS/Linux, Active Directory/Azure AD, endpoint troubleshooting, networking fundamentals, ITSM/asset tools, strong communication and discretion.
Active Directory, Azure AD, Windows, macOS, Linux, Jira Service Management, Snipe-IT, ServiceNow, Microsoft Endpoint Manager (Intune), JAMF, PowerShell, Bash, DNS, DHCP, TCP/IP
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2mo
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IT Systems & Cloud Administrator
South San Francisco, California, United States
$100k-$120k/yr OnsiteFull Time
Rigel Pharmaceuticals
Rigel PharmaceuticalsNASDAQ: RIGL: Develops and sells medicines for blood disorders and cancer.
3+ YOEBachelor's (or equivalent), 3+ years systems administration in hybrid on-prem/cloud environments; Windows Server, AD, Azure and AWS experience; virtualization, monitoring, backup/DR, security, and troubleshooting skills.
Microsoft Azure, AWS, Entra ID, Azure Virtual Desktop, IAM, EC2, S3, VPC, CloudWatch, VMware, Hyper-V, Splunk, Linux, Microsoft 365, Azure AI Services, AWS SageMaker
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Systems & Network Administrator
Travis AFB, California, United States
$72k-$77k/yr OnsiteFull Time
Sumaria Systems
Sumaria Systems: A systems integrator providing DoD medical IT and network support.
5+ YOE5+ years supporting Air Force Medical Information Systems/DHA, Security+ required, proficiency with Windows Server, Microsoft System Center Configuration Manager (MECM/SCCM), and Cisco switch configuration; strong communication skills.
Windows Server, Microsoft System Center Configuration Manager (MECM/SCCM), Cisco
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1mo
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Information Technology Administrator
Oakland or San Francisco or Hayward
$70k-$78k/yr OnsiteFull Time
Envision Education
Envision Education: Operates a network of public charter schools in California.
Experience administering macOS, ChromeOS, Windows, Google Workspace, Jamf, and Meraki; hardware repair, networking, AV support, help-desk troubleshooting, frequent inter-site travel, valid driver's license, and California residency once hired.
Google Workspace, Jamf, macOS, ChromeOS, Windows, Meraki, Adobe Creative Suite, Apple hardware
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