HiringCafe
Join our community

220 linux systems administrator jobs at 134 companies in California

1w
Save
Mark Applied
Hide
Linux Systems Administrator II
Fullerton, California, United States
$6k-$9k/mo OnsiteFull Time
California State University
California State University: Public university system providing higher education and academic research.
2+ YOEBachelor's degree or equivalent experience, two years of relevant systems administration experience, Linux server administration, troubleshooting, scripting, virtualization, cloud technologies, communication, and a valid California driver's license.
Linux, High Performance Computing (HPC), Docker, Podman, Singularity, Apptainer, Kubernetes, Ansible, Puppet, Chef, Amazon Web Services (AWS), Microsoft Azure, Google Cloud Platform, Nagios, Prometheus, Grafana, Zabbix, Simple Linux Utility for Resource Management (SLURM)
Job PostingView all
1mo
Save
Mark Applied
Hide
Principal Linux Systems Administrator / Sr. Principal Linux Systems Administrator (AHT)
Redondo Beach, California, United States
$104k-$194k/yr OnsiteFull Time
Northrop Grumman
Northrop GrummanNYSE: NOC: Develops and manufactures advanced aerospace, defense, and space systems.
5+ YOEStrong Linux (Red Hat) system administration experience, OS/package management (RPM), shell scripting, hardware troubleshooting, ability to obtain DoD Secret clearance, bachelor's degree in CS or related (or equivalent experience).
Linux, Red Hat, VMware, RPM, Shell scripting
Job PostingView all
1mo
Save
Mark Applied
Hide
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
Job PostingView all
1mo
Save
Mark Applied
Hide
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
Job PostingView all
1mo
Save
Mark Applied
Hide
Sr Linux Administrator
Long Beach, California, United States
$103k-$155k/yr OnsiteFull Time
Relativity Space
Relativity Space: Designing and manufacturing 3D-printed rockets and launch vehicles.
6+ YOE6+ years Linux and Windows systems administration experience; expertise in Linux administration, Active Directory/DNS/DHCP, enterprise backups; networking troubleshooting; automation and documentation skills.
Azure, GCP, Active Directory, DNS, DHCP, Veeam, Commvault, Rubrik, Ansible, Puppet, Terraform, Bash, Python, PowerShell
Job PostingView all
2w
Save
Mark Applied
Hide
Linux System Administrator
San Jose, California, United States
$7k/mo OnsiteContract
SBT Global
SBT Global: Provides integrated IT consulting and global logistics management services.
7+ YOE7+ years Linux systems administration experience, VMware expertise, Linux certifications preferred, DoD 8570.1 IAT Level II or equivalent, shell scripting, storage and network equipment management.
VMware, KVM, Netapp, Dell/EMC, PureStorage, Atlassian Jira, Confluence, ansible, Foreman, GLPI, Cisco, Mellanox, FlexLM, Jenkins, Git, LDAP, Apache, Red Hat Linux, CentOS, Ubuntu, Windows 2008, Windows 2008 R2, Windows 2012
Job PostingView all
1mo
Save
Mark Applied
Hide
Linux Systems Technician
Edwards Air Force Base, California, United States
OnsiteFull Time
SMS Data Products Group
SMS Data Products Group: Provides IT infrastructure modernization and cybersecurity for federal agencies.
3+ YOE3+ years Linux system administration experience; knowledge of OS, hardware, software, networking; platform certification (CompTIA Linux+ or Red Hat); DOD 8140 IAT-II/CompTIA Security+CE; interim Secret clearance required.
Linux, Puppet, LDAP, SAN, SSO, DOD Security Requirements Guide (SRG), DOD Security Technical Implementation Guide (STIG)
Job PostingView all
3w
Save
Mark Applied
Hide
Linux Administrator (Classified Systems) – Active Secret Clearance Required
Carlsbad, California, United States
$121k-$191k/yr OnsiteFull Time
Viasat
ViasatNASDAQ: VSAT: Provides global satellite broadband and secure networking communication services.
6+ YOEActive Secret clearance,6+ years Linux administration (RHEL/Ubuntu),DoD security/RMF experience,virtualization (VMware/Hyper-V/OpenShift),NetApp/Veeam,AD/IdAM,trellix,ability to lift 40lbs,DoD 8140.01 or equivalent certs.
RHEL, Ubuntu, DISA STIGs, NIST 800-53, VMware, Hyper-V, OpenShift, NetApp, Veeam, Trellix, Active Directory, IdAM, GPOs, DNS, DHCP, Splunk, Docker, LXD, Ansible, Puppet
Job PostingView all
3w
Save
Mark Applied
Hide
Linux Administrator (Classified Systems) – Active Secret Clearance Required
Carlsbad, California, United States
$121k-$191k/yr OnsiteFull Time
Viasat
ViasatNASDAQ: VSAT: Provider of global satellite-based connectivity and secure communication solutions.
6+ YOEActive Secret clearance, 6+ years Linux administration (RHEL/Ubuntu), 4+ years DoD/industrial security with RMF, 2+ years virtualized infrastructure (VMware/Hyper-V/OpenShift), Trellix, AD/IdAM, NetApp/Veeam experience, ability to lift 40lbs, DoD 8140.01 certs.
RHEL, Ubuntu, VMware, Hyper-V, OpenShift, Trellix, ePO, Active Directory, IdAM, GPOs, DNS, DHCP, NetApp, Veeam, Docker, LXD, Ansible, Puppet, Splunk
Job PostingView all
2w
Save
Mark Applied
Hide
Linux System Administrator
San Diego, California, United States
$140k-$155k/yr OnsiteFull Time
Bridge Defense
Bridge Defense: Provides secure infrastructure and edge computing for national security.
Active Secret clearance, DoD 8570/8140 IAT II or IAM II (e.g., Security+ CE), CSWF certification, bachelor's degree or equivalent, RHEL 7/8 Linux administration, cybersecurity and compliance experience.
Red Hat Enterprise Linux (RHEL), PHP, PKI, STIGs, RMF
Job PostingView all
2mo
Save
Mark Applied
Hide
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
Job PostingView all
1w
Save
Mark Applied
Hide
Journeyman Systems Administrator
Camarillo or Point Mugu
$125k-$150k/yr OnsiteFull Time
Saalex
Saalex: Provides engineering, IT, and mission support for defense agencies.
5+ YOERequires 5+ years of systems administration experience, Windows or UNIX/Linux expertise, Security+ or equivalent certification, high school diploma/GED, and active Top Secret clearance with SAP eligibility.
Windows, UNIX, Linux, Windows Server, Risk Management Framework (RMF), Authority to Operate (ATO), Information Assurance (IA), STIG, ACAS, IAVM, Configuration Control Board (CCB), Configuration Management Plans (CMPs)
Job PostingView all
1mo
Save
Mark Applied
Hide
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
Job PostingView all
2mo
Save
Mark Applied
Hide
IT Systems Administrator
Seal Beach, California, United States
$86k-$150k/yr OnsiteFull Time
AstroForge
AstroForge: Mines and refines valuable minerals from near-Earth asteroids.
3+ YOE3+ years in IT systems administration with cross-platform support (macOS, Windows, Linux); network administration; IAM; cloud and SaaS management; ITAR/CMMC awareness.
macOS, Windows, Linux, routing, switching, VPNs, firewalls, wireless, Active Directory, Azure AD, Okta, AWS, GCP, Azure, Google Workspace, Microsoft 365, Slack, Zoom, GitHub, Bash, PowerShell, Python, Jamf, Intune, NIST CSF, CIS Controls, CompTIA Security+, Network+
Job PostingView all
2d
Save
Mark Applied
Hide
IT Systems Administrator, Launch
Brownsville or Cape Canaveral or Vandenberg
OnsiteFull Time
SpaceX
SpaceX: Designs and launches advanced rockets and satellite internet constellations.
3+ YOEHigh school diploma or equivalent, 3+ years of IT systems administration, Linux or Windows server administration, enterprise networking, driver's license, background checks, and ITAR work authorization.
Linux, Windows, Bash, PowerShell, Python, Terraform, Ansible, Puppet, Active Directory, SCCM, TCP/IP, DNS, DHCP, SNMP, NTP, PTP, ITAR, ISO, NIST
Job PostingView all
1mo
Save
Mark Applied
Hide
Systems Administrator-Cleared
Denver or Folsom
$120k-$165k/yr OnsiteFull Time
Voyager Technologies
Voyager TechnologiesNYSE: VOYG: Provides advanced defense and commercial space technology solutions.
3+ YOEActive TS/SCI required, 3+ years systems administration experience; manage Microsoft 365/Azure, Intune, Okta, AD, Windows/Linux servers, virtualization, Fortinet networking, and scripting (PowerShell/Bash/Python).
Microsoft 365, Microsoft Azure, Microsoft Intune, Okta, Microsoft Entra ID, Microsoft Exchange Online, Microsoft Teams, Microsoft SharePoint, Microsoft Defender, Windows Server, Linux, Ubuntu, RHEL, CentOS, VMware vSphere, Hyper-V, Fortinet, FortiGate, FortiSwitch, FortiClient, Active Directory, PowerShell, Bash, Python, ServiceNow, Jira Service Management
Job PostingView all
2mo
Save
Mark Applied
Hide
Senior Systems Administrator
Costa Mesa, California, United States
$146k-$194k/yr OnsiteFull Time
Anduril Industries
Anduril Industries: Defense technology building autonomous military hardware and software.
8+ YOE8+ years designing and implementing classified IT systems; experience with air-gapped systems, physical hardware, virtualization (VMware/Podman), Windows and Linux administration, DISA STIG hardening, NIST 800-53/RMF familiarity, automation, DoD 8570/8140 baseline certification, and active U.S. Top Secret clearance.
Lattice OS, Microsoft Windows, Microsoft Windows Server, Linux, VMware, Podman, Ansible, DISA STIGs, NIST 800-53, Risk Management Framework (RMF)
Job PostingView all
3d
Save
Mark Applied
Hide
Systems Administrator
Woodland Hills, California, United States
$105k-$115k/yr OnsiteFull Time
Los Angeles Rams
Los Angeles Rams: Operates a professional American football team.
5+ YOERequires 5+ years of systems administration experience, Microsoft enterprise technologies, hybrid cloud, identity platforms, Windows Server, virtualization, Intune, PowerShell, networking, and monitoring platforms.
Microsoft 365, Microsoft Entra ID, Active Directory, Exchange Online, Microsoft Teams, Microsoft SharePoint Online, Windows Server, VMware, Hyper-V, Microsoft Intune, PowerShell, SAML, SCIM, SSO, DNS, DHCP, SMB, iSCSI, Azure, Linux, Red Hat Enterprise Linux, SQL, Databricks, Jira Service Management
Job PostingView all
1mo
Save
Mark Applied
Hide
Systems Administrator
Los Angeles, California, United States
$85k-$120k/yr OnsiteFull Time
Antares
Antares: Designing and manufacturing microreactors for defense and space missions.
2+ YOE2+ years IT support/systems administration experience; Microsoft 365/Entra ID/Intune knowledge; endpoint, networking, and cloud (Azure/AWS) familiarity; PowerShell and troubleshooting skills; compliance/audit documentation experience.
Microsoft 365, Microsoft Entra ID, Microsoft Intune, Microsoft Defender, Microsoft Exchange, Microsoft Teams, Microsoft SharePoint, Windows, macOS, Linux, PowerShell, Microsoft Azure, AWS, GCC High, Ubiquiti, UniFi, Zoom, PSA, RMM, VPN, LAN, WAN, WiFi, TCP/IP, DNS, DHCP, VLAN, NAC
Job PostingView all
1w
Save
Mark Applied
Hide
Cloud Systems Administrator
San Diego, California, United States
$125k-$145k/yr HybridFull Time
Storage Strategies Inc
Storage Strategies Inc: Provides systems engineering and IT services to federal agencies.
Requires Security+ and Secret clearance, systems administration, Windows, networking, AWS Cloud, Linux, virtualization, Active Directory, scripting, ACAS scans, STIGs, and test plan development experience.
AWS Cloud, Windows, bash, PowerShell, VMware, Active Directory, EC2, Lambda, S3, Directory Service, WorkSpaces, Linux, ACAS, STIGs, ActivClient, 90meter, Axway, Ansible, CyberArk, Infrastructure-as-code (IAC), Privileged Access Management (PAM), PKI, Risk Management Framework (RMF)
Job PostingView all

Explore Jobs

Expand Your Job Search