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34 linux system admin jobs at 25 companies in California

1mo
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Sr. System Engineer- ArcGIS
Redlands or St. Louis or Vienna
$156k-$239k/yr OnsiteFull Time
Esri
Esri: Developing software for digital mapping and spatial data analysis.
12+ YOE12+ years experience designing, implementing, and administering enterprise ArcGIS or comparable systems; US citizenship with active Top Secret/SCI clearance; bachelor's degree in CS/Math/GIS/STEM; scripting (Python, PowerShell, Javascript, C#); RDBMS and Windows/Linux admin skills.
ArcGIS Enterprise, ArcGIS Desktop, ArcGIS Online, Portal for ArcGIS, ArcGIS Runtime, Python, Microsoft PowerShell, Javascript, C#, Windows, Linux, Microsoft SQL Server, Oracle, PostgreSQL
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3w
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Sys Admin
Dublin, California, United States
OnsiteFull Time
Ross Stores
Ross StoresNASDAQ: ROST: Discount retail chain selling brand-name apparel and home fashions
4+ YOE4+ years supporting retail systems; administer, monitor and support hardware, OS, networks, and warehouse control components; experience with data center design, cabling, backup/storage and SCCM; undergraduate degree or equivalent preferred.
Dematic, Intelligrated, Hitachi SAN, 3PAR, SCCM, UNIX, Windows, VPN, VoIP
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1mo
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Senior Principal System Administrator
San Diego, California, United States
$133k-$226k/yr OnsiteFull Time
BAE Systems
BAE SystemsLondon Stock Exchange: BA: Designs and manufactures advanced defense and aerospace systems.
8+ YOETop Secret clearance required, typically Bachelor's + 8 years or equivalent. Strong Linux (RHEL), Windows Server, VMware, networking, cybersecurity (DISA STIGs, Nessus) skills; CompTIA Security+; McAfee ePO admin certification within 6 months; experience with classified networks.
VMware, Red Hat Enterprise Linux, YUM, DNF, Windows Server, Microsoft SQL Server, TMPC, McAfee ePO, DNS, LDAP, SSH, SCP, Nessus, PKI, Red Hat KVM, Bash, PowerShell, Shared Storage, Microsoft Word, Microsoft PowerPoint, Microsoft Excel, DISA STIGs
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Information System Security Engineer (ISSE)
Lompoc, California, United States
$120k-$140k/yr HybridFull Time
GovCIO
GovCIO: Provides technology and mission support services to federal agencies.
9+ YOEHigh school with 9+ years (or commensurate experience). Secret clearance required. 5+ years security engineering experience, Linux (Red Hat/CentOS) admin, ACAS configuration and scanning, Security+ required.
Linux, Red Hat, CentOS, Assured Compliance Assessment Solution (ACAS)
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Sys Admin V - AI and Containerization
Edwards AFB, California, United States
$120k-$160k/yr OnsiteFull Time
JT4
JT4NYSE: AMTM: Provides engineering and technical support for military test ranges.
12+ YOEBachelor's or equivalent and 12+ years systems experience; US citizenship and valid driver\u0002s license required; must obtain Top Secret clearance and CompTIA Security+ within 6 months; strong Linux/Windows, virtualization, containerization, networking, and datacenter skills.
Docker, Podman, Buildah, Kubernetes, HashiCorp Nomad, K3s, Red Hat OpenShift, SUSE Rancher, VMware Tanzu, VMware vCenter, Microsoft Hyper-V, Nutanix, Microsoft Windows 11, Microsoft Server, Red Hat Enterprise Linux (RHEL) 8/9, NAS, SAN, IAO Express
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2w
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RDL Jump Host Admin
San Jose or Richardson or Thailand or Shanghai or Songshan Lake or Penang or Guindy
OnsiteFull Time
Celestica
CelesticaNYSE: CLS: Provides design, manufacturing, and supply chain solutions for electronics.
4+ YOE4+ years Linux system administration, bachelor’s in related field or equivalent, expertise in Linux hardening, SSH/PAM, structured logging, virtualization, and export-control compliance; preferred security/sysadmin certifications.
Rocky Linux, RHEL, CentOS, Ubuntu, Bash, Python, sshd_config, PAM, Rsyslog, Journald, Zscaler ZTNA, CyberArk vPAM, VPN, VMware ESXi, vCenter, vSphere, Microsoft Hyper-V, CrowdStrike, ServiceNow, ClearPass
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2mo
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Systems Engineer – Cloud & Infrastructure Engineer
Daly City, California, United States
OnsiteFull Time
Interscripts
Interscripts: Provider of healthcare IT consulting and data management solutions.
5+ YOE5+ years in systems/infrastructure engineering; hands-on with cloud platforms; Windows/Linux admin; virtualization; networking; scripting; security; IaC knowledge a plus.
AWS, Azure, Google Cloud, Windows, Linux, VMware, Hyper-V, Active Directory, DNS, DHCP, VPN, Firewalls, Terraform, Ansible, PowerShell, Bash, Python
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Systems Administrator (4698C) - BSL/EPS
Berkeley, California, United States
$44-$66/hr HybridFull Time
University of California, Berkeley
University of California, Berkeley: Public research university offering undergraduate and graduate education.
Bachelor's degree or equivalent experience; Linux admin; scripting; security; strong communication.
Linux, Shell scripting, Networking, IT security
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1w
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IT Support Services II-Help Desk
Riverside, California, United States
$65k-$71k/yr OnsiteFull Time
Courser
Courser: Managed IT service provider for cloud and infrastructure support.
3+ YOEBachelor's or equivalent experience, 3+ years IT support/system admin, expertise with Windows Server/Linux/macOS, networking (TCP/IP,DNS,DHCP,VPN), ticketing systems, troubleshooting and communication skills.
Windows Server, Linux, macOS, ConnectWise, ServiceNow, JIRA, Zendesk, TCP/IP, DNS, DHCP, VPN, AWS, Azure, VMware, Hyper-V
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Platform DevOps - Level 3
Pasadena, California, United States
$105k-$158k/yr OnsiteFull Time
Sophia Space
Sophia Space: Modular data center hardware for in-orbit computing and AI.
3+ YOE3+ years in DevOps/platform/systems engineering; hands-on Ansible, Linux admin, and Kubernetes/K3s experience; experience with bare-metal/edge hardware (e.g., NVIDIA Jetson), idempotent automation, and distributed system troubleshooting.
Ansible, K3s, RKE2, MicroK8s, Kubernetes, NVIDIA Jetson, Linux
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1w
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IT Specialist
Pomona, California, United States
$80k-$94k/yr OnsiteFull Time
Bimeda
Bimeda: Manufacturer of veterinary pharmaceuticals and animal health products.
3+ YOEAssociate's or bachelor's in IT or equivalent,3+ years IT support/systems admin,VMWare,Windows/Linux servers,Active Directory,M365/Azure,network and endpoint support,strong communication and problem-solving.
VMWare, Microsoft Windows, Linux, Active Directory, Microsoft M365, Microsoft Azure
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1mo
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DevSecOps / Systems Engineer
San Diego, California, United States
$140k-$150k/yr OnsiteFull Time
G2IT
G2IT: Provides IT systems integration and modernization for federal agencies.
5+ YOEActive TS/SCI clearance or eligibility, 5+ years DoD systems engineering, experience with DoD DevSecOps pipelines (OSA), CANES integration, container orchestration, CI/CD, IaC, Linux admin, cloud (AWS/Azure), scripting, and relevant DoD certifications.
Overmatch Software Armory (OSA), CANES, Docker, Podman, Buildah, Kubernetes, OpenShift, Helm, GitLab, Jenkins, AWS CodeBuild, Terraform, Ansible, AWS CloudFormation, Red Hat Enterprise Linux, CentOS, Ubuntu, Bash, Python, PowerShell, AWS, Azure, Java, TypeScript, React, SQL, Jira, Confluence, Bitbucket
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4w
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Senior IT Systems Administrator
San Diego, California, United States
$115k-$155k/yr OnsiteFull Time
Seasats
Seasats: Builds autonomous surface vessels for persistent maritime intelligence.
6+ YOE6+ years IT systems administration experience; Google Workspace or Microsoft 365 admin; MDM for Windows and macOS; Linux knowledge; strong networking (DNS, DHCP, VLANs, VPNs, Wi‑Fi), identity/SSO/MFA, endpoint security, and support/process experience.
Google Workspace, Microsoft 365, Windows, macOS, Linux, MDM, Okta, JumpCloud, Kandji, Jamf, Microsoft Intune, Python, PowerShell, Bash, DNS, DHCP, VLANs, VPNs, Wi‑Fi, firewalls, SSO, MFA
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1d
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Information Systems Security Manager (ISSM)
San Diego, California, United States
$140k-$180k/yr OnsiteFull Time
Firestorm Labs
Firestorm Labs: Develops and manufactures low-cost 3D-printed unmanned aerial vehicles.
6+ YOEU.S. citizen able to obtain DoD clearance,6+ years IT support/systems admin,3+ years Entra ID experience,Azure GCC High and AD experience,EMR not applicable,MacOS/Linux support,networking and clear communication skills.
Microsoft Azure Government GCC High, Entra ID, Intune, Sentinel, Defender, Active Directory, Microsoft Defender, Microsoft 365, Confluence, Jira, VPN, DNS, VLAN, DHCP, Windows, MacOS, Linux
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2w
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IT Technician III
Sacramento, California, United States
$95k-$115k/yr OnsiteFull Time
California Mental Health Services Authority
California Mental Health Services Authority: Coordinates behavioral health programs and certifications for California counties
4+ YOE4+ years IT support experience; advanced Windows/Mac/Linux knowledge; Microsoft 365 admin; MDM, ticketing systems, networking, hardware troubleshooting; associate/bachelor or equivalent; CompTIA A+ or MCP a plus.
Windows, Mac, Linux/Unix, Microsoft 365, Intune, Iru, Jamf, ABM, Zendesk, ServiceNow, Microsoft Outlook, Microsoft Excel, Microsoft Word, Microsoft PowerPoint, Adobe, Google Workspace, Zoom, Slack, Asana
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2mo
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Lead Systems Engineer
Los Angeles, California, United States
$156k-$234k/yr OnsiteFull Time
Sony Interactive Entertainment
Sony Interactive EntertainmentNYSE: SONY: Provides PlayStation gaming hardware, software, and digital network services.
5+ YOEStrong Linux/Windows admin, enterprise storage, virtualization, scripting (Python/PowerShell), Ceph, AD/DNS/DHCP, 5+ years in senior/lead IT roles.
Linux, Windows, Ceph, NFS, SAN, RAID, Grafana, Infoblox, Active Directory, DNS, DHCP, Python, PowerShell, Virtualization
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2mo
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Lead IT Systems Engineer, Launch
Hawthorne, California, United States
$145k-$195k/yr OnsiteFull Time
SpaceX
SpaceX: Designs and launches advanced rockets and satellite internet constellations.
3+ YOE1+ MgmtBachelor’s in STEM and 3+ years IT admin/engineering; 1+ year leading teams; Linux/Windows server, networking, documentation; aerospace/mission-critical experience preferred.
Linux, Windows Server, Networking, Firewall, Runbooks, Scripting
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1w
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HPC Systems Engineer - 132811
San Diego, California, United States
$94k-$115k/yr HybridFull Time
University of California, San Diego
University of California, San Diego: A public research university providing higher education and healthcare.
Administer large-scale HPC clusters and parallel file systems (Lustre, Ceph, GPFS); strong Linux (Red Hat) admin, scripting (Bash, Python), configuration management, and performance benchmarking skills.
Lustre, Ceph, GPFS, Red Hat, Bash, Python, Git
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2w
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SIGINT Systems Administrator - Low-Band Journeyman
Beale AFB, California, United States
$83k-$174k/yr OnsiteFull Time
CACI International
CACI InternationalNYSE: CACI: Provides information technology and engineering services for government agencies.
Active TS/SCI clearance, Security+ CE, Associate's in a technical field or ≥7 years DCGS experience, 2+ years COMINT, 1+ year SIGINT, 1+ year DCGS, intermediate+ Linux/UNIX admin.
Linux/UNIX, CICS, DCGS, LBS
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2w
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SIGINT Systems Administrator - Low-Band Journeyman
Beale AFB, California, United States
$83k-$174k/yr OnsiteFull Time
CACI
CACINYSE: CACI: Provides information technology and professional services to government clients.
1+ YOEActive TS/SCI clearance, Security+ CE, Associate’s degree in a technical field or ≥7 years DCGS experience, 2+ years COMINT, 1+ year SIGINT, 1+ year DCGS, intermediate Linux/UNIX admin, shift-work availability.
LBS, DCGS, Linux/UNIX, CICS
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