HiringCafe
Join our community

45 linux system administrator jobs at 36 companies in Alabama

1w
Save
Mark Applied
Hide
Senior Linux Administrator
Huntsville, Alabama, United States
OnsiteFull Time
Systems Planning and Analysis
Systems Planning and Analysis: Provides technical and analytical support to national security agencies.
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
Job PostingView all
2w
Save
Mark Applied
Hide
Principal Linux System Administrator- must have active secret clearance
Huntsville, Alabama, United States
$87k-$165k/yr OnsiteFull Time
RTX
RTXNYSE: RTX: RTX provides advanced aerospace and defense systems and services.
5+ YOEActive US secret clearance and US citizenship, bachelor\u0002s plus 5 years experience, Linux and Windows server administration, AD/LDAP, VMware, Ansible, security tooling; must obtain CompTIA Security+ CE or equivalent within 6 months.
Redhat Enterprise Linux, Microsoft Windows, Ansible, DNS, DHCP, LDAP, Active Directory, VMware, SCAP, Nessus, Splunk, Symantec
Job PostingView all
3w
Save
Mark Applied
Hide
System Administrator
Redstone, Alabama, United States
OnsiteFull Time
QBE
QBE: Provides technology and security services for federal defense agencies.
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
Job PostingView all
1w
Save
Mark Applied
Hide
Intermediate System Administrator (Linux/OpenShift) - PAE Fires IT Support (AL, Huntsville)
Huntsville, Alabama, United States
OnsiteFull Time
Technology Automation & Management (TeAM)
Technology Automation & Management (TeAM): Provides IT and program management services to federal agencies.
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
Job PostingView all
1w
Save
Mark Applied
Hide
System Administrator II
Huntsville, Alabama, United States
OnsiteFull Time
Technology Service Corporation
Technology Service Corporation: Develops advanced sensor systems and engineering solutions for defense.
2+ YOEAssociate's or Bachelor's (or equivalent experience), minimum 2 years IT support experience, U.S. citizenship and eligibility for DoD Secret clearance, experience with Microsoft 365, Active Directory, Linux, MacOS, and strong organizational skills.
Microsoft 365 GCC High, Microsoft SharePoint Online, Microsoft Exchange, Active Directory, Group Policy, Entra ID, Intune, Linux, Red Hat, Ubuntu, Red Hat Satellite Server, Mac OS, Azure
Job PostingView all
3mo
Save
Mark Applied
Hide
System Administrator-SR
Huntsville, Alabama, United States
OnsiteFull Time
Constellation West
Constellation West: Provides mission-critical technology services for federal government agencies.
8+ YOE8+ years experience; 4-year degree or 4 extra years experience in lieu; onsite Huntsville, AL; Active SECRET clearance; DoD 8140 Security+; Windows/Linux admin; AD, virtualization; STIG compliance; hardware/software support.
Windows, Linux, Active Directory, Virtualization, STIGs, Security+, DoD 8140
Job PostingView all
3mo
Save
Mark Applied
Hide
SENIOR SYSTEM ADMINISTRATOR
Huntsville, Alabama, United States
OnsiteFull Time
Ignite Fueling Innovation
Ignite Fueling Innovation: Provides professional services and technical solutions for federal agencies.
8+ YOESecret clearance required; DoD 8140-certified; 8+ years of system administration; experience in classified environments; Bachelor's degree in IT/CS preferred.
Windows, Linux, Virtualization, Backup, STIGs, Monitoring, Security patches
Job PostingView all
3w
Save
Mark Applied
Hide
Linux Systems Administrator / Secret / Onsite: Huntsville, AL
Huntsville, Alabama, United States
OnsiteFull Time
Lockheed Martin
Lockheed MartinNYSE: LMT: Designs and manufactures global security and aerospace systems.
Requires Secret clearance to start and ability to obtain Top Secret; DoD 8570 IAT II/III cert (Security+, CASP, CISSP) within 6 months; Linux/UNIX administration, lifecycle/configuration management, vulnerability remediation, helpdesk support; able to lift 30 lbs.
RH 7.x, RH 8.x, 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, VSphere vCenter, ESXi, KVM, STIG, RMF
Job PostingView all
1mo
Save
Mark Applied
Hide
1218 - IT System Administrator
Huntsville, Alabama, United States
OnsiteFull Time
Monte Sano Research
Monte Sano Research: Provides defense engineering and missile research for government clients.
5+ YOEBachelor's in CS/IS, CompTIA Security+ required, 5+ years systems/network support experience, experience with Microsoft 365/Entra ID, Windows/Linux/Mac, DoD security familiarity, U.S. citizenship and ability to maintain active security clearance.
Microsoft 365, Entra ID (Azure AD), Microsoft Outlook, Microsoft Teams, Microsoft SharePoint, Microsoft OneDrive, Microsoft Office, Windows Operating Systems, Linux, Macintosh
Job PostingView all
2w
Save
Mark Applied
Hide
Windows System Administrator- Huntsville, Alabama
Huntsville, Alabama, United States
OnsiteFull Time
Davidson Technologies
Davidson Technologies: Delivers engineering and technology solutions for national security missions.
5+ YOEActive DoD Secret clearance, CompTIA Security+, 5+ years Windows administration experience, PowerShell scripting, AD/DNS/GPO management, patch management (WSUS/SCCM), DISA STIG/ACAS familiarity, virtualization and hybrid Windows/Linux operations.
Windows 10, Windows 11, Windows Server 2019, Windows Server 2022, Hyper-V, VMware ESXi, PowerShell, Ansible, ACAS, Evaluate-STIG, Microsoft Office 365, Microsoft Teams, Microsoft SharePoint, Git, GitLab, Jenkins, WSUS, SCCM, Splunk, SolarWinds, Prometheus, KVM, Red Hat Enterprise Linux (RHEL)
Job PostingView all
4w
Save
Mark Applied
Hide
Linux Systems Administrator PR Lead - Kwajalein Atoll - 3856
Huntsville or Huntsville or Marshall Islands
OnsiteFull Time
RGNext
RGNext: Operates and maintains space launch and missile defense ranges.
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
Job PostingView all
2w
Save
Mark Applied
Hide
Senior System Admin-Montgomery, AL Office Onsite
Montgomery, Alabama, United States
OnsiteFull Time
Edfinancial Services: Provides student loan servicing and financial aid management solutions.
Administer and support Windows/Linux servers, virtualization (Hyper-V, VMware), Microsoft Azure and Azure AD, Microsoft 365 services, Active Directory, DNS/DHCP/GPO, backups, disaster recovery, capacity planning, and security patching.
Windows, Linux, Hyper-V, VMware, Microsoft Azure, Azure Active Directory, DHCP, GPO, DNS, Microsoft 365, Microsoft SharePoint, Microsoft Dynamics, Microsoft Teams, sFTP, IaaS, SaaS, PaaS
Job PostingView all
2mo
Save
Mark Applied
Hide
Atlassian Administrator
San Diego or Colorado or Huntsville or Tupelo
$72k-$110k/yr HybridFull Time
General Atomics
General Atomics: Designs and manufactures unmanned aircraft and nuclear technology systems.
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
Job PostingView all
2w
Save
Mark Applied
Hide
2026-07 Principal Systems Administrator
Huntsville, Alabama, United States
OnsiteFull Time
1st Edge
1st Edge: Develops artificial intelligence and software solutions for defense agencies.
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
Job PostingView all
1mo
Save
Mark Applied
Hide
Administrator Epic Systems
Mobile, Alabama, United States
OnsiteFull Time
Infirmary Health
Infirmary Health: Largest non-profit healthcare provider in Alabama.
3+ YOEBachelor's in IT-related field, 3+ years supporting Epic EHR administration, Epic technical certifications required within 12 months, knowledge of enterprise healthcare IT, InterSystems IRIS, Linux/Unix, shell scripting, and SQL.
Epic, Hyperspace Web, Interconnect, Web BLOB, Epic Print Service, InterSystems IRIS, Linux, Unix, Perl, awk, sed, SQL
Job PostingView all
1w
Save
Mark Applied
Hide
Classified Systems Administrator
Huntsville, Alabama, United States
$95k-$143k/yr OnsiteFull Time
The Aerospace Corporation
The Aerospace Corporation: Provides technical expertise and research for national space programs.
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
Job PostingView all
1mo
Save
Mark Applied
Hide
Information Systems Administrator, Journeyman
Montgomery, Alabama, United States
OnsiteFull Time
Torch Technologies
Torch Technologies: Provides research and engineering services to the defense industry.
3+ YOEUS citizen with active Secret clearance, Bachelor's degree or equivalent experience, 3+ years technical experience (with DoD experience), hands-on AWS/GitLab/Linux administration, infrastructure automation, and DoD cybersecurity controls.
Amazon Web Services, AWS GovCloud, EC2, S3, RDS, IAM, VPC, CloudWatch, CloudTrail, Atlassian Toolsuite, GitLab, GitLab CI/CD, RHEL, Amazon Linux, Ubuntu, CloudFormation, Terraform, Docker, Kubernetes, EKS, SAST, DAST, Cloud One, Jira, Jira Service Desk, Confluence, Bitbucket, Artifactory, Jenkins, Maven, Microsoft MS Build, Gradle, SonarQube, Checkmarx, Python, Script Runner, SIL, Azure GovCloud
Job PostingView all
2mo
Save
Mark Applied
Hide
Systems Analyst II - Linux
Birmingham, Alabama, United States
$82k-$132k/yr HybridFull Time
UAB Medicine
UAB Medicine: Academic health system providing patient care and medical education.
3+ YOEAssociate degree or equivalent, 3+ years Linux system administration experience, expertise with Red Hat/Oracle Linux, Bash/Python/Perl scripting, networking, virtualization, SAN storage, monitoring tools, and on-call support.
Red Hat Enterprise, Oracle Enterprise, Bash, Python, Perl, Microsoft Active Directory, Tanium, VMware, HyperV, SAN enterprise storage, Xymon, Zabbix, Nagios, VMware vRealize Operations Manager, AWS, Azure, Docker, Kubernetes
Job PostingView all
2mo
Save
Mark Applied
Hide
Systems Administrator 2nd shift
Huntsville, Alabama, United States
$51k-$82k/yr OnsiteFull Time
Peraton
Peraton: Provides advanced technology and mission support for government agencies.
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
Job PostingView all
6d
Save
Mark Applied
Hide
System Reliability & Support Specialist Sr. - Production Support
Pittsburgh or Phoenix or Denver or Dallas or Birmingham or Cleveland
$75k-$138k/yr OnsiteFull Time
PNC Financial Services
PNC Financial ServicesNYSE: PNC: Provides banking, lending, and investment services to customers.
3+ YOE3+ years IT experience, production support, vulnerability and incident management, OS administration (Windows/Linux), Dynatrace/Logscale, EM/SQL troubleshooting, bachelor's degree preferred.
Dynatrace, Logscale, Jira, Confluence, Service Now, SQL, ETL, SQL Server, Windows, Linux
Job PostingView all

Explore Jobs

Expand Your Job Search