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3,723 linux administrator jobs at 1,479 companies in United States

1mo
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Linux Administrator
Reston or Chantilly
OnsiteFull Time
LT Consulting
LT Consulting: Minority-owned IT consulting firm delivering software, systems, database, and integration services to Intelligence Community customers.
Active TS/SCI clearance with polygraph, bachelor’s in computer science or related, Linux systems administration responsibilities.
Linux
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1w
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Linux Administrator
Washington, District of Columbia, United States
OnsiteFull Time
InquisIT
InquisIT: Private federal technology contractor providing cloud, cybersecurity, IT modernization, and engineering services to U.S. government agencies.
8+ YOEBachelor's degree or equivalent experience, 8–10 years of technical experience, Red Hat Linux administration, automation, middleware, virtualization, monitoring, security hardening, and enterprise infrastructure expertise.
Red Hat Linux, Apache Tomcat, Apache HTTP Server, nginx, HAProxy, DISA STIG, CIS Benchmark, NIST 800-53, Oracle WebLogic, IBM WebSphere Application Server, IBM Security Verify Access, Active Directory Lightweight Directory Services, OpenText Documentum Document Management Server, Ansible, Python, Bash, Red Hat Satellite, Zabbix, Grafana, Elasticsearch, Splunk, Hyper-V, AWS, Azure, NVIDIA GPU, Ollama, LiteLLM, guardrails
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1w
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Linux Administrator
Chantilly, Virginia, United States
OnsiteFull Time
Closure Technologies
Closure Technologies: Private IT consulting and software engineering firm serving government organizations with AI, cloud, cybersecurity, and data services.
10+ YOERequires TS/SCI with polygraph, 10 years of Linux server administration or related technical experience, and a bachelor's degree or equivalent experience. Requires scripting, systems, patching, documentation, and hardware troubleshooting.
Linux, Centrify, LDAP, Active Directory
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Linux Administrator
Aberdeen Proving Ground, Maryland, United States
OnsiteFull Time
BAE Systems
BAE SystemsLSE: BA.: Global defense, aerospace, and security technology.
5+ YOEBachelor's or equivalent experience, 5+ years Linux/system administration experience, DoD 8570 certification (Security+), OS certification (Linux+/RedHat), ability to obtain Top Secret clearance, scripting and automation experience.
Ansible, Puppet, Python, Apache, Zabbix, Red Hat Satellite, Red Hat Identity Manager, BIND, OpenID, LDAP, Kerberos
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2d
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Senior Linux Administrator
Hanover, Maryland, United States
$180k-$265k/yr OnsiteFull Time
Amentum
AmentumNYSE: AMTM: Global provider of engineering, technical, and mission-critical services.
Requires 9+ years as a Linux administrator, bash programming, Linux, and a bachelor's degree in computer studies or related technical discipline; TS/SCI with polygraph clearance required.
Linux, bash, Perl, Python, Red Hat, CentOS, HTML, XML, Java2E, Puppet, Kubernetes, Docker
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2w
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Linux Administrator
McLean, Virginia, United States
$82k-$130k/yr OnsiteFull Time
AMERICAN SYSTEMS
AMERICAN SYSTEMS: Government services contractor delivering IT and engineering solutions.
3+ YOEBachelor’s degree in computer science or related field, 3+ years as a Linux/UNIX systems administrator, DoD Secret or Top Secret clearance, and CompTIA Security+ certification.
AWS GovCloud, sFTP, Shell, Perl, RHEL, Solaris
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Linux Administrator
Florida, United States
RemoteFull Time
Resolve Tech Solutions
Resolve Tech Solutions: Private U.S. IT consulting firm serving enterprises with SAP modernization, cloud migration, managed services, and AI solutions.
3+ YOE3+ years administering Linux and Windows servers, system security, virtualization, patching, backups, scripting (Bash/PowerShell), and troubleshooting across mixed OS environments.
Active Directory, DNS, DHCP, Group Policy, Ubuntu, CentOS, Red Hat, VMware, Hyper-V, AWS, Azure, Bash, PowerShell, Nagios, Zabbix, SolarWinds, Docker, Kubernetes, CI/CD
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1mo
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Sr Linux Administrator
Long Beach, California, United States
$103k-$155k/yr OnsiteFull Time
Relativity Space
Relativity Space: Aerospace developing 3D-printed rockets and launch services.
6+ YOE6+ years Linux and Windows systems administration experience; expertise in Linux administration, Active Directory/DNS/DHCP, enterprise backups; networking troubleshooting; automation and documentation skills.
Azure, GCP, Active Directory, DNS, DHCP, Veeam, Commvault, Rubrik, Ansible, Puppet, Terraform, Bash, Python, PowerShell
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3mo
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Senior Linux Administrator
North Carolina, North Carolina, United States
$102k-$105k/yr OnsiteFull Time
Accel BI Corporation
Accel BI Corporation: U.S. IT services helping government, higher education, healthcare organizations modernize with cloud, data, and automation.
3+ YOESenior Linux Administrator with AWS experience; strong Linux (RHEL) administration, monitoring, automation, security, and scripting (Bash/Python).
Ansible, Terraform, CloudFormation, Bash, Python, AWS, RHEL, Linux, HAProxy, iptables, SVM, LVM, ZFS, NAS, VERITAS
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2mo
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Linux Administrator II
Westminster, Colorado, United States
$33-$39/hr OnsiteFull Time
CesiumAstro
CesiumAstro: Developing advanced communication systems for space and airborne platforms.
2+ YOEBachelor's degree in a technical discipline with 2+ years Linux systems administration; networking fundamentals (TCP/IP, DNS, DHCP, VLANs), cybersecurity best practices, troubleshooting, operational readiness, and strong cross-team communication.
Linux, TCP/IP, DNS, DHCP, VLANs, firewalls
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1mo
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Senior Linux Administrator
Huntsville, Alabama, United States
OnsiteFull Time
Intrepid, LLC
Intrepid, LLC: A providing IT and engineering support to government and defense customers, focused on mission-driven solutions.
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
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3mo
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Linux Systems Administrator
Melbourne, Florida, United States
OnsiteFull Time
Ascension Federal Services
Ascension Federal Services: Provides IT, engineering, and project management services to federal agencies.
3+ YOE3+ years Linux system administration; strong Linux, scripting, and security practices; virtualization experience; Ansible/Puppet/Chef a plus.
Linux, VMware, KVM, Shell scripting, Python, Perl, Ansible, Puppet, Chef
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3w
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Linux Administrator - 304821
Boyers, Pennsylvania, United States
HybridFull Time
Delaware Nation Industries
Delaware Nation Industries: Tribally owned federal contracting firm providing IT, cybersecurity, construction, medical, and professional services to federal and commercial clients.
3+ YOE3+ years Linux application administration experience, CompTIA Security+ (or equivalent), active DoD Top Secret clearance, experience with application deployments, monitoring, troubleshooting, and security (STIG).
Windows Server, STIG
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4w
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Linux System Administrator
San Antonio, Texas, United States
$110k-$190k/yr OnsiteFull Time
Set of X
Set of X: Private engineering-services providing software and technical support to U.S. government customers.
10+ YOE10+ years system administration experience, Linux administration, enterprise infrastructure support, strong troubleshooting and communication, ability to work independently in mission-focused environments, TS/SCI with polygraph required.
Linux
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4d
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Linux Systems Administrator
New York City, New York, United States
$125k-$156k/yr OnsiteFull Time
Persistent Systems
Persistent Systems: US defense technology developing secure mobile networking systems for military, government, first responders, and commercial users.
6+ YOEBachelor's degree, 6+ years of systems administration experience, Linux administration, Bash or Python scripting, networking knowledge, configuration management familiarity, and US security clearance or ability to obtain one.
Linux, Bash, Python, UNIX, Ansible, LUKS, LVM, SELinux, AppArmor, Docker, Kubernetes
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2mo
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Linux System Administrator
National Harbor, Maryland, United States
$104k-$218k/yr OnsiteFull Time
CACI
CACINYSE: CACI: Provider of specialized IT and mission-critical government services.
7+ YOEU.S. citizenship required; minimum 7 years Linux system administration experience; experience with DISA STIGs/CIS Benchmarks, security hardening, vulnerability remediation, LDAP/PAM/ICAM, and Linux logging/monitoring. FEMA/DHS suitability preferred.
Linux, DISA STIGs, CIS Benchmarks, LDAP, PAM, ICAM, bash, python, Ansible, Puppet, Chef, AWS, Azure
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5d
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Linux Administrator (SA2) (Government)
Columbia or Laurel
$98k-$175k/yr OnsiteFull Time
AT&T
AT&TNYSE: T: A leading provider of telecommunications, broadband, and digital connectivity services.
10+ YOE10 years of systems administration experience, bachelor's degree or 5 additional years, TS/SCI with polygraph, IAT Level II certification, and Linux, scripting, and automation expertise.
Linux, Bash, Python, Puppet, Ansible, AWS, EC2 Auto Scaling, aws-cli, boto3
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3mo
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Linux System Administrator
Annapolis Junction or Columbia
$101k-$129k/yr OnsiteFull Time
Intelliforce-IT Solutions Group
Intelliforce-IT Solutions Group: Woman-owned Maryland IT contractor providing software engineering, systems engineering, cybersecurity, and data solutions to federal intelligence customers.
5+ YOETop Secret clearance with polygraph; US citizenship; 5+ years Linux system administration; IAT Level 1; on-call required; Bachelor's not required.
Linux, Bulk data transport, Messaging, Data flow administration
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2d
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Linux System Administrator
Fort Meade or Odenton
$134k-$164k/yr OnsiteFull Time
Quevera
Quevera: Veteran-owned custom software engineering firm serving government customers with mission-critical IT solutions.
7+ YOERequires active TS/SCI clearance with polygraph, Security+, strong Linux administration, Ansible automation, enterprise virtual machine security experience, and qualifying education and technical experience.
Linux, OpenStack, AWS, VMware, Kubernetes, Ansible, YUM, Rancher, kubectl, CentOS, Red Hat Enterprise Linux (RHEL), EC2, RDS, Git, Splunk
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1mo
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Linux System Administrator
College Park, Maryland, United States
$70k-$130k/yr HybridFull Time
Dark Wolf Solutions
Dark Wolf Solutions: Private IT consultancy delivering cybersecurity, software, cloud, data, and mission-engineering services to defense and intelligence customers.
3+ YOE3+ years Linux, endpoint, and VMware administration; CKA certification; US citizenship with active Secret clearance; HS diploma required; scripting and cloud-native experience preferred.
Red Hat Enterprise Linux, RHEL, Ubuntu, VMware vSphere, vCenter, ESXi, Kubernetes, Cloud Native Computing Foundation (CNCF), Bash, Python, Terraform, Ansible, Splunk, Elasticsearch, GitLab, GitHub, Bitbucket
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