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104 linux administrator jobs at 69 companies in Pasadena, CA

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Founding Backend / Infra Engineer
Cupertino, CA, US
$160k-$300k/yr On-SiteFull Time
HiringCafe
HiringCafe: Building a 100× better job search engine to take on Indeed and LinkedIn.
Own the crawlers, pipelines, and infrastructure powering a real-time job search engine. Strong Node.js and Python fundamentals; bonus points for security and reverse-engineering chops.
Node.js, Python, Elasticsearch, Redis
Help us #BeatIndeed & #BeatLinkedIn
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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
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Linux Administrator
Irvine, California, United States
$100k-$115k/yr OnsiteFull Time
Boot Barn
Boot BarnNYSE: BOOT: Specialty retailer of western and work-related apparel and footwear.
3+ YOEBachelors or equivalent experience, 3+ years system administration, Windows Domain Group Policy, Microsoft Exchange/Office 365, PowerShell, Microsoft Windows Server, virtualization, networking, Azure, Kubernetes, Ansible, scripting, backup and restore, and willingness to work extended hours.
Microsoft Windows Server, Microsoft Active Directory, DNS, DHCP, SMB, NFS, Kubernetes, Ansible, PowerShell, Microsoft Exchange, Microsoft Office 365, Azure, PAM, MDM
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Principal Linux Administrator
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 advanced degree with 3+ years); experience with Microsoft Windows, Red Hat Enterprise Linux, ESXi/vCenter, AD, DNS, DHCP, backups, RAID, and security; obtain CompTIA Security+ CE within 6 months.
Red Hat Enterprise Linux, ESXi, VMware vCenter, Microsoft Windows, Windows Server, Active Directory, DNS, DHCP, Ansible
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Linux System Administrator (Associate)
Seal Beach, California, United States
$79k-$133k/yr OnsiteFull Time
Boeing
BoeingNYSE: BA: Designs and manufactures aircraft, defense systems, and space technology.
Active Top Secret/SCI or recent Tier 5 (T5); experience with Linux (RHEL), AWS, system provisioning/patching, user administration; ability to obtain Security+ / IAT Level 2; U.S. person required; willingness to relocate if needed.
Red Hat, RHEL, AWS, Linux, Agile, Joint Special Access Program Implementation Guide (JSIG), Risk Management Framework (RMF)
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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: Designs and manufactures advanced aerospace and defense systems.
5+ YOELinux system administration (Red Hat), OS/hardware/network troubleshooting, RPM/package management, shell scripting, ability to obtain DoD Secret clearance, bachelors in CS or equivalent experience (5+ years).
Linux, Red Hat, RPM, VMware, shell scripting
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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
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Linux System Administrator (Associate)
Seal Beach, California, United States
$79k-$133k/yr OnsiteFull Time
Boeing
BoeingNYSE: BA: Designing and manufacturing commercial aircraft and defense systems.
Active U.S. Top Secret/TS-SCI clearance, U.S. citizenship, experience with Linux (RHEL) and AWS, knowledge of JSIG and RMF, ability to obtain Security+/IAT Level 2, willingness to relocate if needed.
Red Hat Enterprise Linux (RHEL), Linux, AWS, JSIG, RMF, Agile
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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
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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
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IT Systems Administrator
Orange, California, United States
$80k-$115k/yr OnsiteFull Time
Winchester Interconnect
Winchester Interconnect: Designs and manufactures custom connectors and cable assemblies.
8+ YOE8+ years systems administration experience in multi-site manufacturing; 8+ years SQL/database administration; proficiency with Windows Server, Linux/Unix, virtualization, cloud platforms, networking, backup/DR, and cybersecurity.
Google Enterprise, ADP, Crowdstrike Falcon, Tanium, Microsoft Active Directory, GlobalShop, SQL, Microsoft Windows Server, Linux/Unix, VMware, Microsoft Hyper-V, AWS, Microsoft Azure, Google Cloud
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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+
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System Administrator - Level 4
Pasadena, California, United States
$107k-$160k/yr OnsiteFull Time
Sophia Space
Sophia Space: Modular data center hardware for in-orbit computing and AI.
5+ YOE5+ years systems administration experience supporting mixed macOS/Windows/Linux environments; strong identity/access, MDM, networking, troubleshooting, documentation, and automation skills (Python/Bash/PowerShell).
Apple Business Manager, Google Workspace, Microsoft Entra ID, Intune, Python, Bash, PowerShell, MDM, SSO, SAML, SCIM, MFA, RBAC, VPNs, VLANs, Wi-Fi, Linux, NIST 800-171, CMMC
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System Administrator
Arcadia, California, United States
$39-$42/hr OnsiteFull Time
Foothill Credit Union
Foothill Credit Union: A member-owned financial institution providing banking and lending services.
5+ YOE5+ years system administration in hybrid environments, 3 years IT security, bachelor\u0002s in IT/CS (or equivalent), expertise in Windows Server/AD, Linux, VMware, Intune, backup solutions, and regulatory compliance (NCUA/FFIEC).
VMware vSphere, ESXi, vCenter, Microsoft Intune, Entra, Office 365, Azure, Azure AD, Active Directory, Group Policy, DNS, DHCP, Veeam, Hyper-V, Nutanix
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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)
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Senior Systems Administrator
Torrance, California, United States
$110k-$137k/yr OnsiteFull Time
Red Cat Holdings
Red Cat HoldingsNASDAQ: RCAT: Providing all-domain drone and robotic solutions for defense.
7+ YOE7+ years systems administration experience, 3+ years in senior/lead capacity. Strong Windows, Linux, Microsoft 365, Azure/AWS, identity, endpoint, backup, monitoring, Jira/Confluence, scripting (PowerShell/Python/Bash), security and incident response. US work authorization required for ITAR/EAR roles.
Microsoft 365, Microsoft GCC High, Windows, Linux, macOS, Entra ID, Active Directory, DNS, DHCP, Group Policy, Azure, AWS, PowerShell, Jira, Jira Service Management, Confluence, Smartsheet, Adobe Acrobat, SolidWorks PDM, GitLab, GitHub, Jenkins Build Server, Microsoft Intune, Microsoft Autopilot, Microsoft Defender, Microsoft Purview, Exchange Online Protection, VMware, Python, Bash
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Senior Systems Administrator
Torrance, California, United States
$110k-$137k/yr OnsiteFull Time
Red Cat Holdings
Red Cat HoldingsNASDAQ: RCAT: Manufacturing tactical drone systems for defense and security.
7+ YOE7+ years systems administration experience (3+ in senior/lead capacity). Strong Windows/Linux/macOS, Active Directory/Entra ID, Azure/AWS, endpoint, backup, monitoring, and incident response skills; Jira/Confluence experience; strong communication and troubleshooting; background check and U.S. work authorization required for export‑restricted roles...
Microsoft 365, Microsoft GCC High, Windows Server, Windows, Linux, macOS, Microsoft Entra ID, Microsoft Azure AD, Active Directory, DNS, DHCP, Group Policy, Microsoft Exchange Online, Microsoft SharePoint, Microsoft Teams, Microsoft OneDrive, Microsoft Exchange Online Protection, Azure, AWS, Jira, Jira Service Management, Confluence, Smartsheet, Adobe Acrobat, SolidWorks PDM, GitLab, GitHub, Jenkins Build Server, PowerShell, Python, Bash, Microsoft Intune, Microsoft Autopilot, Microsoft Defender, Microsoft Purview, VMware
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Network Administrator
La Mirada, California, United States
$63k-$93k/yr OnsiteFull Time
Solid State Devices, Inc.
Solid State Devices, Inc.: Manufacturer of high-reliability power semiconductors for aerospace and defense.
4+ YOEMinimum 4 years network administration experience, associate/bachelor's in IT or equivalent, relevant certifications preferred (CompTIA Network+, CCNA/CCNP, Microsoft Azure Administrator, JNCIA). Strong troubleshooting, security, and communication skills.
Cisco routers, Cisco switches, firewalls, wireless access points, Windows Server, Linux/Unix, SolarWinds, Wireshark, Nagios, Active Directory, VMware, TCP/IP, DNS, DHCP, SNMP, FTP
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1mo
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Database Administrator
Irving or San Francisco or Los Angeles
$64k-$118k/yr OnsiteFull Time
Publicis Groupe
Publicis GroupeEuronext Paris: PUB: Global advertising and digital transformation agency holding.
5+ YOEBachelor's in CS/IT, 5+ years DBA experience, strong PostgreSQL and Oracle (RAC, Data Guard, RMAN) skills, cloud experience (AWS/Azure/GCP), SQL, Linux/Unix, scripting (Shell/Python), performance tuning, backup/recovery and HA, on-call participation.
PostgreSQL, Oracle, RAC, ASM, Active Data Guard, RMAN, datapump, pg_dump, WAL, PITR, SQL, Linux, Unix, Shell, Python, AWS, Azure, GCP, RDS, Docker, Kubernetes, CI/CD
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Information Systems Administrator
Hawthorne, California, United States
OnsiteFull Time
Quantum Space
Quantum Space: Developing maneuverable spacecraft platforms for defense and commercial missions.
4+ YOE4+ years in system administration/DevOps/cloud/network support; experience with Linux/macOS/Windows, scripting (BASH/Shell/YAML), IaC (Terraform/Ansible/Puppet), Azure/AWS, IdP/SAML, cybersecurity (CompTIA Security+), and ability to obtain/maintain security clearance.
Linux, macOS, Windows, BASH, Shell, YAML, Terraform, Ansible, Puppet, Microsoft Azure, Amazon Web Services, IdP, SAML
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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
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