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Linux System Administrator
San Diego, California, United States
$140k-$155k/yr OnsiteFull Time
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
1w
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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
1mo
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Senior Systems Engineer - Linux - 26-016
San Diego, California, United States
$150k-$165k/yr OnsiteFull Time
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)
2mo
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Atlassian Administrator
San Diego or Colorado or Huntsville or Tupelo
$72k-$110k/yr HybridFull Time
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
2mo
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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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Classified Systems Administrator
Woburn or Boston or Arlington or Dayton or Melbourne or Carlsbad
$115k-$160k/yr OnsiteFull Time
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)
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)
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Systems Administrator II - La Jolla, CA
La Jolla, California, United States
$91k-$146k/yr OnsiteFull Time
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
1mo
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Sr Systems Administrator
San Diego or California
RemoteFull Time
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
1mo
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Senior IT Systems Administrator
San Diego, California, United States
$115k-$155k/yr OnsiteFull Time
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
3w
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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
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
1mo
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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
1mo
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Sr. Systems Engineer - Linux
San Diego, California, United States
$120k-$145k/yr OnsiteFull Time
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
3w
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Splunk Administrator (Site Reliability Engineer)
Tustin or Riverside or Sacramento
$47-$75/hr HybridFull Time
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
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
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Systems Administrator
Anaheim, California, United States
$90k-$95k/yr OnsiteFull Time
5+ YOEBachelor's in IT or related,5+ years experience, experience with networking equipment, server and security protocols, Active Directory, and supporting Tier I/II technicians.
VMWare, Ubiquiti, Linux, RDP, Active Directory, Intune, Azure, O365, Office 365, Microsoft Excel, Microsoft Word, Microsoft Outlook, Endpoint Protection, Anti-Virus, Firewalls, routers
2w
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IT Systems Administrator / AWS Infrastructure Specialist
Rancho Santa Margarita, California, United States
$45-$65/hr HybridFull Time
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
2w
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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
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Senior IT Systems Administrator
San Diego, California, United States
HybridFull Time
5+ YOEUS citizen able to obtain Secret clearance, CompTIA Security+ or equivalent, DoD 8570 IAT Level II (or obtain within 6 months), 5+ years systems admin experience, Windows/Linux, virtualization, scripting, AD and networking.
VMware vSphere, Horizon, PowerShell, Bash, Python, Microsoft Entra ID (Azure AD), Active Directory, Group Policy, DNS, DHCP
2mo
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Information Security Administrator
Chino, California, United States
$129k-$157k/yr OnsiteFull Time
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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