33 linux system administrator jobs at 19 companies in Sun City, CA
1d
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System Administrator II
Colorado Springs or Irvine or Denver or Indianapolis or Grand Rapids or Lexington or Los Angeles or Louisville or Texas or San Francisco or United States
$105k-$115k/yr OnsiteFull Time
3+ YOEBachelor's degree or equivalent experience; 3–5 years of system administration experience; Windows/Linux, enterprise infrastructure, cybersecurity, cloud, automation, and compliance experience; Secret clearance eligibility; DoD 8570 IAT Level II certification.
Windows, Linux, Active Directory, DNS, DHCP, Group Policy, VMware vSphere, ESXi, Hyper-V, Azure, AWS, GCC High, PowerShell, Bash, Python, Ansible, SCCM/MECM, Chef, Puppet, STIG, SCC, IAVA, NIST 800-53, FedRAMP, CMMC, RMF
2mo
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System Administrator III
Rancho Mirage, California, United States
$45-$69/hr HybridFull Time
8+ YOEBachelor's in IT or 4+ years experience, 8+ years as System Administrator, advanced certifications (Citrix, SAN, CCNA, CISSP, etc.), Epic ECSA if assigned, strong systems, storage, virtualization and security skills.
LANDesk, Microsoft Exchange, Microsoft Active Directory, DHCP, DNS, Microsoft Group Policy, Microsoft Certificate Services, PXE, Citrix, VMware vSphere, P2V, P2P, Symantec Endpoint, sys-prep, PRTG, Active Administrator, bash, vb-script, Windows DSC, Cisco UCS, CommVault, VNX, XtremIO, Isilon, Epic, SAN, Microsoft Windows Server, Microsoft Windows 10, Apple iOS, Apple OSx, Linux
1mo
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Linux Administrator (Classified Systems) – Active Secret Clearance Required
Carlsbad, California, United States
$121k-$191k/yr OnsiteFull Time
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
1mo
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Linux Administrator (Classified Systems) – Active Secret Clearance Required
Carlsbad, California, United States
$121k-$191k/yr OnsiteFull Time
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
3mo
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IT Systems Administrator
Seal Beach, California, United States
$86k-$150k/yr OnsiteFull Time
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+
2mo
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System Engineer- ArcGIS
Redlands or St. Louis or Vienna
$121k-$198k/yr OnsiteFull Time
8+ YOE8+ years experience deploying and administrating enterprise ArcGIS or comparable systems; Windows/Linux sysadmin; scripting (Python, PowerShell, JavaScript, C#); RDBMS and SQL; Top Secret/SCI clearance and US citizenship; Bachelor\u0002s in STEM.
ArcGIS, ArcGIS Enterprise, ArcGIS Desktop, ArcGIS Online, Portal for ArcGIS, ArcGIS Runtime, RDBMS, SQL, SQL Server, Oracle, PostgreSQL, Python, PowerShell, Javascript, C#, Windows, Linux
2mo
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Senior Systems Administrator
Costa Mesa, California, United States
$146k-$194k/yr OnsiteFull Time
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)
2w
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Cloud Systems Administrator III
Fullerton, California, United States
$7k-$10k/mo OnsiteFull Time
4+ YOEBachelor's equivalent and four years of relevant experience or equivalent substitution. Requires advanced systems administration, cloud, operating systems, server, scripting, virtualization, project management, analytical, communication, and stakeholder skills.
Amazon Web Services (AWS), AWS Organizations, CloudFormation, AWS Cloud Development Kit (CDK), AWS Command Line Interface (CLI), AWS Systems Manager, CloudWatch, CloudTrail, Config, GuardDuty, IAM Access Analyzer, AWS Backup, AWS Budgets, Cost Explorer, Terraform, Git, Linux, Windows Server, containers, serverless
3w
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IT Systems Administrator II
Garden Grove, California, United States
OnsiteFull Time
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
2mo
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Network Security Administrator
Tustin, California, United States
$150k-$180k/yr OnsiteFull Time
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
1mo
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District Network Systems Administrator
Mission Viejo, California, United States
$9k-$13k/mo OnsiteFull Time
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
1w
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Onsite IT Systems Administrator / IT Support Specialist
Rancho Santa Margarita, California, United States
$35-$55/hr OnsiteFull Time
Experience administering Windows, Linux, Hyper-V, servers, desktops, VPN, Active Directory, Exchange, hardware, networking, security, updates, backups, and compliance documentation; strong communication and problem-solving skills.
Windows, Linux, Hyper-V, VPN, MS Office, Dell, PERC, Hardware RAID, RAID, Windows Active Directory, MS Exchange, Ubuntu, Debian, AWS, Azure, HP, Aruba, Ethernet, SOC2, ISO 27001, FedRAMP, E-Verify
1mo
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(Senior) Quality Specialist for Distributed Systems (Riverside, CA, US)
Riverside, California, United States
OnsiteFull Time
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
1mo
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Senior Systems Analyst (68.26)
San Dimas, California, United States
$106k-$181k/yr OnsiteFull Time
7+ YOE7+ years systems analysis experience, BS in Computer Science or equivalent, Oracle DB/CC&B experience preferred, SQL/PLSQL, Linux administration, troubleshooting, strong communication and change management skills.
Oracle Customer Care and Billing (CC&B), Oracle Business Intelligence Publisher, Automic Automation Manager, OpenText Exstream, Oracle Mobile Workforce Management (MWM), Customer Web Self-Service (CSS), Oracle Database, SQL, PL/SQL, SQL Developer, Toad, Linux, Oracle Weblogic Server, Enterprise Manager, Oracle Utilities SDK, Eclipse, Oracle SOA Suite, Oracle Integration, Java, Python, BI Publisher
1mo
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Red Hat Certified Engineer (RHCE)
Corona, California, United States
$200k-$240k/yr OnsiteFull Time
7+ YOERHCE or RHCA required; Bachelor's in CS/IT; 7+ years Linux system administration; experience with RHEL/OpenShift/Kubernetes, Ansible, Bash, Python, VMware; ability to obtain Secret clearance.
Linux, RHEL, CentOS, Rocky, Red Hat OpenShift, Kubernetes, VMware ESXi, Ansible, Bash, Python, CI/CD, DoD STIGs, RMF
2mo
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IT Systems Engineer II
La Mirada or United States
$58-$67/hr HybridFull Time
2+ YOE2+ years systems engineering (3+ IT experience preferred). Expertise in Linux/Windows/macOS administration, cloud platforms (AWS, Azure), containerization (Kubernetes), GitOps, Ansible, identity and endpoint management, automation/IaC, security best practices, and use of AI for operational tasks.
Linux, Windows, macOS, iOS, Kubernetes, Google Workspace, Zoom, Microsoft 365, AWS, Azure, GitOps, Ansible, Entra ID, Intune, SCCM, Jamf
2mo
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Senior Cloud Operations Engineer - DBA
Irvine, California, United States
OnsiteFull Time
5+ YOEBachelor's in CS/IT, 5+ years administering AWS cloud databases (MySQL/PostgreSQL), Linux administration, scripting in Shell/Python/Java, strong communication; distributed systems and zero-downtime migration experience preferred.
AWS, MySQL, PostgreSQL, MongoDB, Cassandra, DynamoDB, Redis, Linux, Shell, Python, Java, DMS, NoSQL
1w
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Cloud Systems Engineer III
Santa Ana, California, United States
$123k-$135k/yr HybridFull Time
2+ YOERequires 3+ years of Windows Server administration, 2+ years of cloud infrastructure experience, Linux, Intune, IaC, cloud security, networking, containers, scripting, and California residency near Santa Ana.
Microsoft Windows Server, Active Directory, Group Policy Objects (GPOs), DNS, DHCP, RHEL, CentOS, Ubuntu, Bash, Ansible, AWS, Azure, Microsoft Intune, Azure Active Directory (Entra ID), Terraform, Bicep, ARM, CloudFormation, Git, IAM, RBAC, MFA, VPC, VNet, VPN, ExpressRoute, Direct Connect, AKS, EKS, Kubernetes, Python, PowerShell, CI/CD
1mo
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Senior Endpoint Protection Engineer
Charlotte or Newport Beach or Omaha
$125k-$153k/yr OnsiteFull Time
8+ YOE8+ years systems or security platform administration experience; hands-on CrowdStrike Falcon or comparable EDR; endpoint security, incident response, Windows/Linux/macOS support; scripting/automation experience preferred.
CrowdStrike Falcon, EDR, SIEM, ITSM, PowerShell, Python, Bash
6d
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Infrastructure Engineer
Corona or Norco
$115k-$135k/yr OnsiteFull Time
4+ YOEBachelor's degree in a relevant field, 4 years of system administration experience, 3 years installing patches and managing system updates, IAT Level II certification, and Secret clearance required.
Microsoft Windows, Linux, Unix, Microsoft Office Suite, firewalls, anti-virus, intrusion detection services
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