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33 linux systems administrator jobs at 24 companies in Poway, 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
1mo
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Senior Systems Engineer - Linux - 26-016
San Diego, California, United States
$150k-$165k/yr OnsiteFull Time
AUSGAR Technologies
AUSGAR Technologies: Specialized cybersecurity and systems engineering for defense organizations.
5+ YOESecret clearance required or ability to obtain; 5+ years Linux systems administration; experience with Linux hardening, PKI, encryption, STIGs and RMF; strong networking, scripting and documentation skills.
GitLab, OpenProject, Git, Subversion, Samba, Python, SSH, rsync, AWK, grep, vi/vim, systemd, LUKS, OCSP, CRL, TLS/SSL, X.509, PKI, LDAP, Active Directory, Kerberos, SSSD, PAM, RAID, Security Technical Implementation Guides (STIGs), Risk Management Framework (RMF)
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1mo
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Classified Systems Administrator
Woburn or Boston or Arlington or Dayton or Melbourne or Carlsbad
$115k-$160k/yr OnsiteFull Time
Systems & Technology Research
Systems & Technology Research: Develops advanced technology for national security and defense applications.
3+ YOETS/SCI with CI Polygraph required; U.S. citizenship. 3+ years technical experience or equivalent. Linux (Red Hat/CentOS/Ubuntu) and Windows administration, Active Directory, networking, NAS, firewall, PowerShell automation, DoD security guidance knowledge, and after-hours support.
Red Hat, CentOS, Ubuntu, Windows, NAS Storage, Firewall, Microsoft Active Directory, Group Policy, PowerShell, Enterprise Virtualization Tools, Multi-Factor Authentication, Public Key Infrastructure, Web Server, LDAP, Security Technical Implementation Guidelines (STIGS), Security Content Automation Protocol (SCAP), Host Based Security System (HBSS), Assured Compliance Assessment Solution (ACAS), DoD Ports, Protocols, and Services (PPS)
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3w
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Sr Systems Administrator
San Diego or California
RemoteFull Time
SAIC
SAICNASDAQ: SAIC: Provides government and defense clients with technology and engineering services.
5+ YOEUS citizen required; bachelor’s +5 years (or +4 years experience in lieu). Azure, IaaS/PaaS, container (Docker/Kubernetes/AKS), IaC (PowerShell, Python, Azure CLI, Bicep, JSON), Windows/Linux administration, VMware, Exchange/Exchange Online, Active Directory/Entra, DNS/DHCP, VPN, ServiceNow experience.
Azure, IaaS, PaaS, Docker, Kubernetes, AKS, PowerShell, Python, Azure CLI, JSON, Bicep, Windows Server, Linux, VMware, Active Directory, Entra (Azure AD), DNS, DHCP, Kerberos, VPN, Microsoft Exchange Online, Microsoft Teams, Microsoft Office 365, M365, ServiceNow, Veritas NetBackup, NetApp
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3mo
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IT Systems Administrator III
San Diego, California, United States
$98k-$147k/yr OnsiteFull Time
Innoflight
Innoflight: Designs and manufactures compact cyber-secure avionics for space missions.
5+ YOE5+ years in system administration, networking, and security; Windows/Linux servers; AD; virtualization; cloud (Azure/AWS); security frameworks (NIST/CMMC); scripting (PowerShell/Python).
PowerShell, Python, VMware, Hyper-V, Windows Server, Linux, Azure, AWS, Active Directory, VPN, Firewall, IDS/IPS, DNS, DHCP, Scripting and automation
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2w
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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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6d
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Systems Administrator (GEODSS) - Diego Garcia 1
Diego Garcia or San Diego or Chicago or Fairbanks or Vandenberg AFB or Nellis AFB
OnsiteFull Time
Serco
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
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3w
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Sr. Systems Engineer - Linux
San Diego, California, United States
$120k-$145k/yr OnsiteFull Time
Axos Financial
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.
Linux, Unix, Puppet, VMware, vSphere, ESXi, vCenter, Zerto, ServiceNow, Bash, Python
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2mo
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HPC Systems Engineer (Linux / Infrastructure)
San Diego, California, United States
$116k-$209k/yr OnsiteFull Time
General Atomics
General Atomics: Designs and manufactures unmanned aircraft and nuclear technology systems.
15+ YOEBachelor's degree or equivalent experience, 15+ years systems administration experience, deep Linux stack knowledge (NFS, ZFS, BTRFS, mdadm, LVM), scripting with Python/Ansible/Bash, troubleshooting distributed systems; SLURM and parallel file system experience desirable.
Lustre, BeeGFS, WEKA, Ceph, SLURM, Ansible, Python, Bash, Docker, Podman, Apptainer, NFS, ZFS, BTRFS, mdadm, LVM
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1mo
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IT Systems Administrator, Mid
San Diego, California, United States
$62k-$141k/yr OnsiteFull Time
Booz Allen Hamilton
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
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1mo
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IT Systems Administrator, Mid
San Diego, California, United States
$62k-$141k/yr OnsiteFull Time
Booz Allen Hamilton
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
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1w
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System 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+ YOE6+ years administering Windows and Linux systems in classified environments; DoD RMF experience, SIPRNet administration, virtualization, networking, and DoD 8140.01 certification; active Secret clearance required.
Windows Server, Win 10, Win 11, Linux, Active Directory, TCP/IP, DNS, DHCP, VMware, Hyper-V, OpenShift, ACAS, SCAP, HBSS, Certificate Management, Radius, 802.1x, SIPRNet, Juniper, Palo Alto, Cisco, NetApp, Veeam, Splunk, Nessus, Microsoft Exchange Server
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1mo
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#Linux Tool Software Engineer, Sr.
San Diego, California, United States
$111k-$167k/yr OnsiteFull Time
Qualcomm
QualcommNASDAQ: QCOM: Designs and manufactures semiconductors and wireless telecommunications products.
2+ YOEBachelor's in CS/Engineering/Info Systems (or higher) with 2+ years software engineering experience; proficiency with C, C++, Java, Python; CI/CD, SCM and tooling experience; Linux administration and DB troubleshooting (MongoDB, SQL, Elastic Search).
C, C++, Java, Python, C#, Github, Gerrit, Perforce, ClearCase, MongoDB, SQL, Elastic Search, Linux, CI/CD, SCM
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5d
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SCIF System Administrator
San Diego, California, United States
$80k-$120k/yr OnsiteFull Time
SAIC
SAICNYSE: SAIC: Provides engineering, IT, and mission support services to government.
4+ YOEActive US citizenship with TS/SCI, 4+ years classified network systems administration, JWICS/VTC/COMSEC experience, RMF/NIST compliance, Windows 10/11 and Linux knowledge, ability to brief senior personnel.
Joint Worldwide Intelligence Communications System (JWICS), Video Teleconference Communications (VTC), DITPR-DON, DADMS, Enterprise Mission Assurance Support Service (eMASS), Vulnerability Remediation Asset Manager (VRAM), Exacta, Windows 10, Windows 11, Linux, RMF, NIST, CAC, COMSEC
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2mo
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Senior Systems Administrator, Network (San Diego, CA, US)
San Diego, California, United States
$126k-$163k/yr OnsiteFull Time
Murata
MurataTokyo Stock Exchange: 6981: Murata manufactures electronic components and wireless connectivity modules.
6+ YOE6-8 years in network infrastructure; experience with routers, switches, firewalls; TCP/IP, OSPF, BGP, EIGRP; cloud experience (AWS/Oracle) a plus; Cisco/Aruba/Palo Alto networks; strong communication and leadership.
Cisco IOS, NX-OS, ARUBAOS, PANOS, Radius authentication, 802.1x, ClearPass, GlobalProtect, VPN, VMware, NetApp, Linux, Windows Server, SQL Server, CentOS, RHEL, TCP/IP, OSPF, BGP, EIGRP
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1mo
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Computer Systems Analyst I
Coronado or Ashburn or Sierra Vista or United States
$80k-$89k/yr OnsiteFull Time
Veteran Enterprise Technology Services
Veteran Enterprise Technology Services: Provides IT and engineering services to federal government agencies
2+ YOEDoD Secret clearance and U.S. citizenship required. 2 years experience in installation/maintenance of computer systems and network servers; proficiency with Microsoft Office/Exchange, TCP/IP and administration of Microsoft, Linux, or UNIX systems; CompTIA Security+ within 6 months.
Microsoft Office, Microsoft Exchange, Linux, UNIX, TCP/IP, MIS databases
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1mo
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Systems Engineer - Microsoft Windows
La Jolla, California, United States
$101k-$161k/yr OnsiteFull Time
Institute for Defense Analyses
Institute for Defense Analyses: Operates federally funded research centers for national security analysis.
6+ YOE6+ years IT experience with 4+ years systems administration (or 8+ years with HS); advanced Linux and Windows server administration; VMware, scripting (Shell/Perl/PHP/PowerShell), patching, automation, and security hardening; ability to obtain Top Secret/SCI and DOD 8570 IAT II.
Active Directory, GPO, HPC, Nessus, Perl, PHP, PowerShell, RHEL, SQL, Shell, STIGs, VMware vSphere, vCenter, Windows Server 2022, Windows 11, Microsoft Office, Microsoft SharePoint, Microsoft WSUS, Microsoft SCCM, DNS, DHCP, VLANs, Omnissa Horizon
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3w
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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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3d
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Sr Principal Cyber Systems Engineer
San Diego, California, United States
$156k-$235k/yr OnsiteFull Time
Northrop Grumman
Northrop GrummanNYSE: NOC: Develops and manufactures advanced aerospace, defense, and space systems.
8+ YOEBachelor's in STEM with 8+ years (or equivalent experience), US citizenship, active Secret clearance, ability to obtain Top Secret and SAP, RMF and IPv4/IPv6 experience, RHEL administration, datacenter hardware installation, and up to 50% travel.
Red Hat Enterprise Linux (RHEL), Ansible, VMware vSphere, ESXi, vCenter, McAfee ePolicy Orchestrator (ePO), Host Based Security System (HBSS), Risk Management Framework (RMF), IPv4, IPv6, Windows, Linux
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1mo
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Information Assurance Security Administrator
Carlsbad, California, United States
OnsiteFull Time
24 Hour Fitness
24 Hour Fitness: Operates a national chain of commercial fitness clubs.
1+ YOEExperience with CIS CSC 18, PCI, IDS/IPS, forensics, firewall, UNIX and Microsoft systems; Security+ (or equivalent); Associate's degree or relevant experience; 1+ years related experience. Python, penetration testing, CASP/GIAC preferred.
CIS CSC 18, PCI, Firewall, UNIX, Microsoft Systems, Python, Agile, Scrum
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1mo
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Red Hat Linux System Administration, Department of Cybersecurity - Adjunct Faculty
San Diego, California, United States
OnsitePart Time, Contract
University of Maryland Global Campus
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.
Linux, Red Hat, Networking, Security
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