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48 linux administrator jobs at 30 companies in Lake Elsinore, CA

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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)
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3w
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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
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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
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2mo
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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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2mo
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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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Systems Administrator Lead
San Bernardino, California, United States
$110k-$137k/yr OnsiteFull Time
Stater Bros. Markets
Stater Bros. Markets: Operates a chain of supermarkets in Southern California.
10+ YOE10+ years supporting enterprise Windows servers; expertise in Windows Server, Linux, Azure, Microsoft 365, Active Directory, virtualization, storage, networking, recovery, and infrastructure leadership. California driver's license required.
Windows Server, Red Hat Enterprise Linux, Unix, Azure, Microsoft 365, Entra ID, Intune, Microsoft Copilot, vLLM, Active Directory, Group Policy, VMware, Hyper-V, Docker, Kubernetes, LAN/WAN, SAN, DNS, DHCP, Exchange Online
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Senior SAP Basis Administrator
Irvine, California, United States
$115k-$172k/yr OnsiteFull Time
ITT
ITTNYSE: ITT: Manufactures engineered components for transportation, energy, and industrial markets
3+ YOE3+ years SAP Basis experience (3-5 preferred), 1 year SAP Security, bachelor’s degree preferred, US citizenship required, hands-on S/4HANA and HANA administration, cloud (AWS/Azure) and Linux/Windows experience, strong incident & DR skills.
SAP Basis, S/4HANA, RISE with SAP, SAP HANA 2.0, HANA System Replication (HSR), SAP GUI, TMS, SAP BTP, Cloud Connector, SuccessFactors, Ariba, SAP ECC 6.0, SAP 4.0B/AS 400, BW on HANA, PI/PO, Fiori, CRM, EWM, LVM, Solution Manager, BOBJ BI, BODS, GRC, Content Server, Java, Oracle, MS SQL, SQL, SUSE, RHEL, Linux, Windows Server Cluster, Hyper-Visor, AWS, Azure, VPN, VPC, VNET
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Systems Administrator SME
Corona or Norco
$115k-$135k/yr OnsiteFull Time
Bowhead
Bowhead: Federal government contracting and professional services provider.
5+ YOERequires Secret clearance, IAT Level II certification, and extensive systems administration experience; qualifying paths include high school/GED plus 12+ years, bachelor's plus 8+ years, or master's plus 5+ years.
Windows, Linux, Unix, Microsoft Office Suite, firewalls, anti-virus, intrusion detection
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1mo
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Splunk Administrator (Site Reliability Engineer)
Tustin or Riverside or Sacramento
$47-$75/hr HybridFull Time
SchoolsFirst Federal Credit Union
SchoolsFirst Federal Credit Union: Provides financial banking and lending services to members.
5+ YOE5+ years relevant experience, Bachelor\u0002s or equivalent, knowledge of Splunk/SPL, Java/.NET, Linux/Windows servers, observability/APM, containerization, scripting, incident response and ITIL practices.
Splunk, Search Processing Language (SPL), Application Dynamics, SNMP, IBM Security Access Manager (ISAM), IBM/Apache HTTP Server, IBM Secure Directory Server, Docker, Kubernetes, Openshift, Python, Jenkins, Git/Gitflow, Ansible, Quay, Artifactory, Redhat Linux, Microsoft Windows Server, Java, .NET, IBM AIX
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Network Security Administrator
Tustin, California, United States
$150k-$180k/yr OnsiteFull Time
Design West Technologies
Design West Technologies: Designs and manufactures aerospace and defense electro-mechanical systems.
5+ YOE5–8 years in network/systems/cybersecurity; hands-on Palo Alto (NGFW, Prisma Access, Cortex XDR); Microsoft Windows Server, Linux, Microsoft Azure, Microsoft Entra ID; CMMC Level 2/NIST SP 800-171 knowledge; active or obtainable Secret clearance.
Palo Alto Networks, NGFW, Prisma Access, Cortex XDR, Microsoft Windows Server 2016\u00092022, Linux, Microsoft Azure, Microsoft Entra ID, Microsoft Active Directory, PowerShell, Bash
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4w
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IT Systems Administrator / AWS Infrastructure Specialist
Rancho Santa Margarita, California, United States
$45-$65/hr HybridFull Time
Melissa
Melissa: Provides global address, identity, and contact data quality solutions.
Experience administering AWS, Linux (Ubuntu), Windows, Kubernetes and Docker; familiarity with EC2, ALB, EKS and Alibaba Cloud; participation in SOC2/ISO 27001/FedRAMP compliance; OSCAL/documentation automation; on-call support availability.
AWS, EC2, ALB, EKS, Alibaba Cloud, Kubernetes, Docker, Ubuntu, Linux, Windows, OSCAL (Open Security Controls Assessment Language), hypervisors
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District Network Systems Administrator
Mission Viejo, California, United States
$9k-$13k/mo OnsiteFull Time
South Orange County Community College District
South Orange County Community College District: Provides higher education and vocational training in Southern California.
4+ YOEAdminister and maintain district LAN/WAN, design network solutions, troubleshoot network issues, prepare technical specifications, and collaborate with campus network administrators.
Windows, Linux, network management software, web server software, anti-virus servers
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IT Systems Administrator II
Garden Grove, California, United States
OnsiteFull Time
Evans Manufacturing
Evans Manufacturing: A manufacturing supporting IT infrastructure across its operations.
2+ YOERequires 2+ years in Windows systems or network administration and two or more relevant certifications, such as CompTIA A+, CompTIA Network+, MCSA, or CCNA. Bachelor's degree or equivalent experience desired.
Active Directory, Entra ID, Hyper-V, VMware, Microsoft 365, Zoom Phone, Contact Center, Google Workspace, Windows Server, OS X, Linux, UniFi Access Points, UniFi Cameras, Checkpoint Harmony Endpoint Protection, Checkpoint Harmony Email & Collaboration, Ubiquiti UniFi, Exchange Online, Windows 365, Windows Sandbox
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2mo
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Information Security Administrator
Chino, California, United States
$129k-$157k/yr OnsiteFull Time
Inland Empire Utilities Agency
Inland Empire Utilities Agency: Provides regional wastewater treatment and wholesale water distribution services.
5+ YOEFive years of information security governance and operations; knowledge of network monitoring, vulnerability management; experience with OT/ICS security is desirable; must hold valid California driver’s license and one security certification.
Firewalls, Endpoint protection, SIEM, VPNs, Microsoft 365, Azure, Windows servers, Linux servers, Active Directory
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Dynatrace Architect
Murrieta, California, United States
$100k-$120k/yr OnsiteFull Time
Tata Consultancy Services
Tata Consultancy ServicesNational Stock Exchange of India: TCS: Global provider of IT services, consulting, and business solutions.
8+ YOERequires Dynatrace administration, APM, Linux and Windows administration, cloud technologies, Kubernetes, Docker, networking, scripting, and DevOps/CI/CD knowledge.
Dynatrace, Dynatrace OneAgent, ServiceNow, Jira, Microsoft Azure DevOps, GitHub, Azure, Amazon Web Services (AWS), Google Cloud Platform (GCP), Kubernetes, Docker, Linux, Windows, PowerShell, Python, Bash, DNS, TCP/IP, HTTP, HTTPS, CI/CD
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2mo
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Service Reliability Engineer I (Contract)
Aliso Viejo, California, United States
$45-$55/hr OnsiteContract, Temporary
Sony Interactive Entertainment
Sony Interactive EntertainmentTokyo Stock Exchange: 6758: Develops and publishes PlayStation gaming hardware, software, and services.
2+ YOERequires 2+ years in software development or Linux systems administration, Linux production systems expertise, programming experience, communication skills, and proficiency in at least three listed infrastructure topics.
Linux, Python, Bash, Go, Java, C++, Rust, Hadoop, Ceph, MongoDB, Redis, Cassandra, Elasticsearch, Kafka, PostgreSQL, MySQL, Prometheus, Grafana, Kubernetes, AWS, Ansible, SaltStack, Puppet, Chef
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2d
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VULN ASMT ANALYST/PENTR TESTER
Camp Pendleton, California, United States
$110k-$130k/yr OnsiteFull Time
Lumbee Holdings
Lumbee Holdings: Provides government contracting, IT, and construction services.
5+ YOERequires 5 years of hands-on penetration testing, Windows and Linux administration knowledge, security testing expertise, communication skills, and an approved penetration testing certification.
Burp Suite, Metasploit, Cobalt Strike, Kali Linux, Nessus, PowerShell Empire, Windows, Linux Server, router Access Control Lists (ACLs), firewalls, Intrusion Detection System (IDS), Intrusion Prevention System (IPS), antivirus, Endpoint Detection and Response (EDR), web content filtering, PowerShell
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(Senior) Quality Specialist for Distributed Systems (Riverside, CA, US)
Riverside, California, United States
OnsiteFull Time
SAP
SAPFrankfurt Stock Exchange: SAP: Developer of enterprise business software and cloud applications.
Experience with distributed systems, system administration on Linux, proficiency in two of Java/C++/Python, BS/MS in CS or Electrical Engineering, strong architecture and cloud platform knowledge.
Linux, Java, C++, Python, Hadoop, HDFS, Spark
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5d
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Senior Software Engineer [Platform & Infrastructure Services]
Fullerton or United States or Saudi Arabia
$96k-$182k/yr OnsiteFull Time
RTX
RTXNYSE: RTX: Provides advanced aerospace and defense systems and services.
5+ YOESTEM degree and 5+ years of relevant experience required. Requires Windows or Linux deployment, automation, administration, COTS/FOSS integration, U.S. citizenship, and active Secret clearance.
Windows, Linux, Windows Server, Active Directory, Exchange, SQL Server, PowerShell, RDP, DNS, WSUS, Red Hat Enterprise Linux, Kickstart, bash, ssh/scp, VMware vSphere, ESXi, vCenter, Agile, SCRUM
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Sr Specialist, Cyber Intelligence (41664)
Carlsbad, California, United States
$106k-$198k/yr OnsiteFull Time
L3Harris Technologies
L3Harris TechnologiesNYSE: LHX: Aerospace and defense providing mission-critical technology solutions.
8+ YOEActive Secret clearance, Bachelor’s in CS/cyber or 8+ years cybersecurity experience, RMF expertise, Linux/Windows administration, vulnerability management, incident response, and advanced technical writing.
Ubuntu, Red Hat, Windows, Risk Management Framework (RMF), Nessus, ACAS, STIGViewer, SCAP, Splunk, Tenable (Nessus), DISA Gold Disk, Secure Host Baseline (SHB), SIEM
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