29 unix administrator jobs at 20 companies in Crestline, CA
6d
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Systems Administrator SME
Corona or Norco
$115k-$135k/yr OnsiteFull Time
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
1mo
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System Administrator - Level 4
Pasadena, California, United States
$107k-$160k/yr OnsiteFull Time
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
1w
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Linux Systems Administrator II
Fullerton, California, United States
$6k-$9k/mo OnsiteFull Time
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)
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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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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Senior SAP Basis Administrator
Irvine, California, United States
$115k-$172k/yr OnsiteFull Time
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
6d
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Systems Administrator Lead
San Bernardino, California, United States
$110k-$137k/yr OnsiteFull Time
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
2mo
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Server Administrator (on-site) (no relo)
Alhambra, California, United States
$44-$51/hr OnsiteFull Time
4+ YOE4+ years server administration experience; expertise with Windows Server, Linux, Active Directory, DNS, DHCP, GPOs, VMware vSphere/ESXi and Microsoft Hyper-V; DR/BC planning; Tier 3 Exchange support; healthcare/HIPAA compliance.
Dell PowerEdge, HP ProLiant, Windows Server, Linux, VMware vSphere/ESXi, Microsoft Hyper-V, Active Directory, Group Policy Objects (GPOs), DNS, DHCP, Microsoft Exchange, SAN, NAS
1mo
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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
1d
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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
6d
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Dynatrace Architect
Murrieta, California, United States
$100k-$120k/yr OnsiteFull Time
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
4w
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Senior IT Engineer
Irvine, California, United States
$140k-$180k/yr OnsiteFull Time
5+ YOE5+ years in IT operations or systems administration, expert scripting/automation (PowerShell, Python, Bash), config management (Ansible/Puppet/Chef), Windows and Linux administration, networking and virtualization, Azure AD/Entra ID and MDM experience, ability to obtain US security authorization.
Microsoft PowerShell, Python, Bash, Ansible, Puppet, Chef, Terraform, Git, Azure, AWS, Hyper-V, VMware, Microsoft Azure AD, Entra ID, MDM, Windows, Linux
1w
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Senior Software Engineer [Platform & Infrastructure Services]
Fullerton or United States or Saudi Arabia
$96k-$182k/yr OnsiteFull Time
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
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
3w
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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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Senior Cloud Operations Engineer - DBA
Irvine, California, United States
OnsiteFull Time
5+ YOEBachelor's in CS/IT, 5+ years administering cloud (AWS) databases (MySQL/PostgreSQL), Linux administration, scripting (Shell/Python/Java), familiarity with NoSQL, strong communication and collaboration skills.
AWS, MySQL, PostgreSQL, MongoDB, Cassandra, DynamoDB, Redis, Linux, Shell, Python, Java, DMS
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
1w
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Technical Consultant – Integrated Support
Redlands, California, United States
$84k-$142k/yr OnsiteFull Time
5+ YOERequires 5+ years in GIS technical support, system administration, or technical consulting; 3+ years with ArcGIS Enterprise; enterprise databases; customer support; US citizenship; and a bachelor's degree in a related STEM field.
ArcGIS Enterprise, Linux, Python
2mo
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Platform Engineer II (Remote)
Santa Ana or Los Angeles County
$98k-$130k/yr RemoteFull Time
Hands-on Oracle Apps DBA experience with E-Business Suite R12.2.x, Oracle Database 19c RAC, WebLogic, Linux administration, security patching, cloud (OCI/AWS/Azure), automation, monitoring, and AI tool literacy.
Oracle E-Business Suite R12.2.x, Oracle Database 19c RAC, Oracle Fusion Middleware, WebLogic, Oracle Cloud Infrastructure (OCI), AWS, Azure, Linux, RMAN, Data Guard, Cursor, Claude Code, Codex
3mo
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Network Infrastructure Engineer (23587)
Rancho Cucamonga, California, United States
$118k-$170k/yr HybridFull Time
6+ YOE5-7 years in network administration/engineering; BS in CS/IT or related field or equivalent experience; TCP/IP, routing, switching, VLANs; routers/switches/firewalls; VPNs and ACLs; Python for automation; AWS/Azure; Linux; occasional overnight travel.
Palo Alto firewalls, VPN, Cisco Meraki, Cisco switching, AWS, Azure, Linux, Python
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