36 linux system administrator jobs at 20 companies in Lakeside, CA
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Linux System Administrator
San Diego, California, United States
$140k-$155k/yrOnsiteFull Time
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
Linux Administrator (Classified Systems) – Active Secret Clearance Required
Carlsbad, California, United States
$121k-$191k/yrOnsiteFull Time
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.
Linux Administrator (Classified Systems) – Active Secret Clearance Required
Carlsbad, California, United States
$121k-$191k/yrOnsiteFull Time
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.
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
System Administrator Expeditionary Systems (OpAI) - Secret Clearance Required
San Diego, California, United States
$140k-$160k/yrOnsiteFull Time
PMAT: Provides software engineering and data analytics for national defense missions.
3+ YOERequires 3+ years in a relevant technical role, Linux command line, tactical systems troubleshooting, data pipelines, and collaborative problem-solving. Bachelor's degree or equivalent, U.S. citizenship, and active DoD Secret clearance required.
General Atomics: Designs and manufactures unmanned aircraft and nuclear technology systems.
4+ YOE4+ years Atlassian administration experience, 3+ years systems administration; strong Linux/Windows/Unix and enterprise Atlassian (JIRA, Confluence, Bitbucket, Bamboo, Fisheye/Crucible) skills; Agile/Scrum experience; HA/DR and automation experience; US citizenship required.
Atlassian, JIRA, Confluence, Bitbucket, Bamboo, Fisheye, Crucible, Microsoft 365, Microsoft Teams, Microsoft OneDrive, Microsoft Forms, Microsoft Planner, Microsoft SharePoint, Linux, Windows, Unix, TCP/IP, VMs, Agile, Scrum
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.
Institute for Defense Analyses: Operates federally funded research centers for national security analysis.
4+ YOE4+ years systems administration (3+ with Linux) or HS+6 years, experience with Linux, VMware, Apache, MySQL, scripting (Perl, PHP, shell), CompTIA Security+ or equivalent, ability to obtain security clearance.
Linux, VMware, Apache, MySQL, Perl, PHP, GNU utilities
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
Diego Garcia or San Diego or Chicago or Fairbanks or Vandenberg AFB or Nellis AFB
OnsiteFull Time
SercoLondon Stock Exchange: SRP: Provides professional outsourcing services to governments worldwide.
4+ YOEActive security clearance and U.S. citizenship; minimum 4 years systems administration experience; Linux and Windows experience; DISA STIG compliance, backups, auditing, incident response; CompTIA Security+/CCNA/RedHat desired.
GEODSS, Linux, Windows, RedHat, DISA Security Technical and Implementation Guide (STIG), CompTIA Security +, CCNA
NTCSS Senior Automated Information System Analyst (SAISA)
San Diego, California, United States
$83k-$174k/yrOnsiteFull Time
CACINYSE: CACI: Provides information technology and professional services to government clients.
8+ YOEExtensive NTCSS system administration experience, Linux command knowledge, CompTIA Security+, Secret clearance, and a bachelor's degree or eight years of relevant programming, design, or analysis experience.
Northrop GrummanNYSE: NOC: Develops and manufactures advanced aerospace, defense, and space systems.
6+ YOERequires active U.S. Top Secret clearance, Security+ CE, Windows Server and domain administration, systems administration experience, after-hours availability, and ability to travel and lift up to 40 pounds.
Windows, VMware, Linux, Red Hat, CompTIA Security+, Windows Server, NISPOM, DCID 6/3-ICD 503, RMF, STIG, JAFAN, JSIG, Cisco, Windows AD, LDAP, SAN, VLAN, scripting
HIINYSE: HII: Builds naval ships and provides global defense technology solutions.
6+ YOERequires 6 years relevant experience with a bachelor's, 4 with a master's, or 10 with high school; active Secret clearance; Security+ and Linux+ or Microsoft certification; strong server administration and troubleshooting skills.
Microsoft Windows, Group Policy Objects (GPOs), Dynamic Host Configuration Protocol (DHCP), DoD Security Technical Implementation Guides (STIG), Microsoft WSUS, SCCM, VMware, VDI, Windows Servers 2016/2019, WIN10 SHB, RedHat, RHEL 7/8
Northrop GrummanNYSE: NOC: Designs and manufactures advanced aerospace and defense systems.
6+ YOERequires systems administration experience, Windows Server and domain architecture expertise, Security+ CE, active US Top Secret clearance, and ability to travel, lift 40 pounds, and work after hours or weekends.
Windows, VMware, Linux, Red Hat, Windows Server OS, Cisco, Microsoft Active Directory, LDAP, SAN, scripting
Axos FinancialNYSE: AX: Provides digital-first banking and diverse financial services to customers.
5+ YOE5+ years Linux administration, strong Puppet and VMware experience, production support/incident management, Bash/Python scripting, networking and storage knowledge, ITSM experience (ServiceNow) in a regulated banking environment.
Red Hat Linux System Administration, Department of Cybersecurity - Adjunct Faculty
San Diego, California, United States
OnsitePart Time, Contract
University of Maryland Global Campus: Online higher education for adult and military learners.
Master’s degree in Cybersecurity or related field; active Linux certification; experience in networking and security; teaching adults; onsite in San Diego; CCNA/CEH preferred.
Booz Allen HamiltonNYSE: BAH: Consulting and technology services for government and commercial clients
3+ YOE3+ years administering Windows Server, Active Directory, VMware; experience with storage (iSCSI/SAN/NAS), networking, AWS; Top Secret clearance required; Bachelor’s in IT/CS; ability to obtain DoD 8570 IAT2 within 30 days.
VMware, VMware Horizon, VMware vSphere, Windows Server, Windows 10, Exchange, Active Directory, Network Attached Storage, iSCSI, SAN, NAS, Amazon Web Services, Cisco Switches, F5, Big IP, TACLANE, Linux, Red Hat, Apache, HTML, Tenable Nessus, ACAS
Booz Allen HamiltonNYSE: BAH: Provides technology and management consulting services to diverse organizations.
3+ YOE3+ years managing Microsoft Windows Server and Active Directory in enterprise environments; Top Secret clearance required; ability to obtain DoD 8570 IAT2 within 30 days; Bachelor’s in IT/Computer Science; experience with VMware, storage, and networking.
VMware, VMware vSphere, VMware Horizon, Microsoft Windows Server, Microsoft Windows 10, Microsoft Exchange, Microsoft Active Directory, Network Attached Storage, SAN, NAS, iSCSI, Amazon Web Services, Cisco, TACLANE, F5, Linux, Apache, HTML, Tenable Nessus, ACAS
NTCSS Senior Automated Information System Analyst (SAISA)
San Diego, California, United States
$83k-$174k/yrOnsiteFull Time
CACI InternationalNYSE: CACI: Provides information technology and engineering services for government agencies.
Requires extensive NTCSS system administration experience, Linux command knowledge, Force Level NTCSS troubleshooting, CompTIA Security+ with CE enrollment, and a bachelor's degree or eight years of relevant experience.