38 linux systems administrator jobs at 27 companies in Trinity, AL
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Principal Linux Systems Administrator - Secret
Huntsville or United States
OnsiteFull Time
3+ YOERequires Linux server administration in classified environments, Secret clearance, and IAT Level II certification. Requires 3–9 years of IT experience depending on education; bachelor's degree and Security+ CE preferred.
Linux, Windows, ServiceNow, JIRA, Docker, Kubernetes, VMWare, HBSS, SolarWinds, Splunk, Windows Server, Solaris, OSX, UNIX
1w
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Linux Systems Administrator / Secret / Onsite: Huntsville, AL
Huntsville, Alabama, United States
$71k-$131k/yr OnsiteFull Time
Secret clearance required; U.S. citizenship, Linux/UNIX administration, lifecycle and configuration management, incident response, vulnerability remediation, security management, and ability to lift 30 pounds required.
Linux, UNIX, Red Hat Enterprise Linux, Ansible, Red Hat OpenShift, Kerberos, LDAP, NTLM, Active Directory, DHCP, DNS, Group Policy, WSUS, TCP/IP, UDP, SMTP, NFS, FTP, Telnet, SSH, Microsoft Windows 10, Microsoft Windows 11, VMware vSphere, VMware vCenter, ESXi, KVM, STIG, RMF
1mo
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Senior Linux Administrator
Huntsville, Alabama, United States
OnsiteFull Time
8+ YOEBachelor's degree in CS/IT/EE/CE,8+ years systems admin,5+ years Linux administration,Security+ and Linux+ or RedHat cert,active SECRET clearance required.
Red Hat Enterprise Linux 7, Red Hat Enterprise Linux 8, Red Hat Enterprise Linux 9, Red Hat Enterprise Linux 10, OpenShift, Ansible Automation, Gitlab, VEEAM, NetApp, HPE/Synergy, Synology, Windows, Active Directory, Cisco
1w
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Linux System Administrator
Huntsville or Huntsville
OnsiteFull Time
5+ YOERequires U.S. citizenship, 5–10 years of Linux administration in classified environments, active Secret clearance, IAT-II and Linux certifications, scripting skills, and Linux security experience.
Rocky Linux, RHEL, Ansible, Podman, Docker, OpenShift Virtualization, KVM, VMware, Bash, Python, PowerShell, Active Directory, ELK Stack, Splunk, YUM, DNF
1mo
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Linux Systems Administrator PR Lead - Kwajalein Atoll - 3856
Huntsville or Huntsville or Marshall Islands
OnsiteFull Time
8+ YOEBachelor's or equivalent experience, 8+ years IT experience, expertise with RHEL, Docker, Ansible, Git; DoD baseline IAT Level II certifications (Security+/CySA+/GICSP and Linux+/Server+/CE); ability to obtain Secret clearance and relocate to Kwajalein.
RHEL, Red Hat, Docker, Kubernetes, Ansible, Git, GitLab, Ceph, Centrify, Windows, STIG, Bash, Python, PowerShell, sar, mpstat, top, vmstat, iostat
1w
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System Administrator (Linux)
Huntsville, Alabama, United States
OnsiteFull Time
5+ YOERequires 5–8 years of systems administration experience, Linux and RHEL expertise, Cisco networking, GitLab, Linux certification, DoD 8570 IAT II certification, bachelor's degree, and active DoD Secret clearance.
Linux, Windows, GitLab, RHEL, Cisco IOS, VMware ESXi, bash, Python, Ansible, HBSS, RSA
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Systems Administrator
Huntsville, Alabama, United States
OnsiteFull Time
2+ YOEBachelor's degree in a technical field, 2 years of enterprise IT experience, Windows administration expertise, Linux and macOS knowledge, networking skills, troubleshooting ability, and active Secret clearance.
Windows, Linux, Apple macOS
2w
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Senior Linux System Admin - Marshal Flight Ce
Huntsville, Alabama, United States
$120k/yr HybridFull Time
12+ YOEBachelor's degree in a technical field, 12 years of systems or IT infrastructure experience, Linux/UNIX and Windows Server administration, virtualization experience, U.S. citizenship, and ability to obtain Public Trust clearance.
Linux, UNIX, Windows Server, VMware, OpenShift, Red Hat, RHCSA, RHCE, CompTIA Security+, Cisco CCNA, Cisco CCNP, Nexsan, Dell Unity, iDRAC, IPMI, Python, Cisco Software Defined Networking, DevSecOps
2w
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IT Systems Administrator
Huntsville, Alabama, United States
OnsiteFull Time
5+ YOECompTIA Security+ required, ability to obtain Top Secret clearance, 5+ years IT experience, Windows/Linux administration, network troubleshooting, STIGs, COMSEC, user support, and bachelor's degree or equivalent.
Windows, Linux, Security Technical Implementation Guides (STIGs), COMSEC, VTC
3w
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Systems Administrator
Huntsville, Alabama, United States
OnsiteFull Time
5+ YOEBS/BA in related field plus 5 years experience (or equivalent); experience administering Windows, Linux, Solaris, Active Directory, Veritas NetBackup, HPE servers, tape libraries, and lab networks; U.S. citizenship and ability to pass government background check.
Microsoft Windows Server, Veritas NetBackup, Hewlett Packard Enterprise (HPE), HPE StorageWorks, LTO, SCSI, Solaris, Linux, TCP/IP, Active Directory
1mo
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2026-07 Principal Systems Administrator
Huntsville, Alabama, United States
OnsiteFull Time
10+ YOE10+ years systems administration experience with mixed Windows/Linux infrastructure, VMware vSphere, networking, scripting (Bash/Python/PowerShell), DoD/CMMC compliance, and clearance eligibility.
Active Directory, DNS, DHCP, Certificate Services, Ubuntu, Rocky Linux, RHEL, VMware vSphere, Entra ID, GCC High, SLURM, Bash, Python, PowerShell, GitLab, Artifactory, MLflow, Ansible, GitLab CI, Jenkins
1w
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Systems Administrator
Huntsville, Alabama, United States
OnsiteFull Time
3+ YOERequires a Secret clearance, DoD 8570 IAT Level II certification, and 3–12 years of related experience depending on degree. Requires Jira administration, troubleshooting, documentation, and communication skills.
Jira, Bash, PowerCLI, PowerShell, Dell PowerStore, Veeam Backup & Replication, VMware, Hyper-V, Ansible Automation, Python, Confluence, Atlassian, Linux, Windows
1mo
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Classified Systems Administrator
Huntsville, Alabama, United States
$95k-$143k/yr OnsiteFull Time
6+ YOEActive Secret clearance, DoD 8570 certification (e.g., Security+), 6+ years systems administration experience (10+ for higher grade), proficiency with Windows Server/AD, Linux, virtualization, scripting, vulnerability remediation and RMF/NIST/DISA STIG compliance.
PowerShell, Ansible, Tenable (ACAS), SCAP, STIG, RMF, NIST 800-53, DISA STIG, Windows Server, Active Directory, Red Hat Enterprise Linux, Hyper-V, VMWare VSphere, Cisco IOS, Nexus OS, SPLUNK
2mo
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Systems Administrator 2nd shift
Huntsville, Alabama, United States
$51k-$82k/yr OnsiteFull Time
0+ YOEActive TS/SCI with Poly; 2nd shift; end-user tech support; Windows/Linux; DoD 8570 IAT I/II; Cisco Packet Tracer; security certifications.
Windows, Linux, Cisco Packet Tracer, DoD 8570, CISSP, Security+, TS/SCI Poly
3w
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Senior Systems Administrator
Huntsville, Alabama, United States
OnsiteFull Time
5+ YOEActive Secret clearance with ability to obtain TS/SCI, bachelor\u0002s or equivalent experience, 5+ years experience, DoD 8570 IAT II+ certification, experience with RHEL/Ubuntu/Windows/ESXi, US passport within 30 days, willingness to travel up to 50%.
RHEL, Ubuntu, Windows 11, Windows Server, ESXi
2mo
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Systems Administrator 2nd shift
Huntsville, Alabama, United States
$51k-$82k/yr OnsiteFull Time
Provide end-user technical support, install and maintain PCs and network equipment, troubleshoot issues, and support 24/7 operations.
Windows, Linux, Cisco Packet Tracer, Networking, PBX, Servers, Telephones, Cables, Network software
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ArcGIS Systems Administrator
Huntsville, Alabama, United States
OnsiteFull Time
5+ YOERequires 5+ years administering Esri ArcGIS Enterprise in production, a bachelor's degree or equivalent experience, server and database expertise, and active Top Secret clearance with CI polygraph eligibility.
ArcGIS Enterprise, Portal for ArcGIS, ArcGIS Server, ArcGIS Data Store, Web Adaptor, Microsoft SQL Server, Oracle, PostgreSQL, ArcGIS Online, ArcGIS Pro, Windows Server, Linux, SDE
1mo
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System Administrator
Redstone, Alabama, United States
OnsiteFull Time
5+ YOETop Secret/SCI clearance, 5+ years enterprise IT experience, hands-on Windows/Linux system and network administration, STIGs/patching, incident response, and Tier 1/2 user support.
Windows, Linux, Security Technical Implementation Guides (STIGs), COMSEC
1mo
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Intermediate System Administrator (Linux/OpenShift) - PAE Fires IT Support (AL, Huntsville)
Huntsville, Alabama, United States
OnsiteFull Time
Administer Red Hat OpenShift and Linux systems, maintain virtual infrastructure, serve as Tier 3 escalation for container and RHEL application issues, and support Dev/Stage/Prod environment provisioning.
Linux, Red Hat OpenShift, RHEL
1w
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System Administrator Lead
Huntsville, Alabama, United States
OnsiteFull Time
7+ YOERequires 7+ years of system administration, 3+ years Linux administration, classified air-gapped network experience, Secret clearance, ability to obtain TS/SCI and polygraph, and DoD IAT Level II certification.
Linux, Red Hat, Ubuntu, CentOS, Cisco, WAN, LAN, Matlab, Python, GitLab, Jenkins, Kubernetes, Active Directory, LDAP, User Access Control, Splunk, ELK, Tenable Nessus, NetApp, Synology, Wireshark, Snort, PRTG, SCAP, SCC Tool, OpenSCAP, VMWare vSphere, EXSI, TACLANE, NIST, DFARS, Red Hat Satellite, Ansible
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