582 linux systems administrator jobs at 197 companies in Arlington, MD

3mo
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Linux Systems Administrator
Fort Meade, Maryland, United States
$128k-$214k/yr OnsiteFull Time
ManTech
ManTech: Provides technology solutions for defense and intelligence agencies.
10+ YOE10+ years systems administration experience with extensive Linux administration; experience with Ansible, VMware, SAN, NiFi, identity management; bachelor's in technical field (or associate plus more experience) required.
Ansible, NiFi, Keycloak, VMware, SAN, Docker, Kubernetes, SaltStack, Puppet, Python, Bash, Perl, TCP/IP, UDP, HTTP, DHCP, DNS, Active Directory
2mo
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Linux Systems Administrator
Annapolis Junction or Virginia Beach
$87-$111/hr OnsiteFull Time
EverWatch
EverWatch: Develops software and intelligence systems for government agencies.
10+ YOE10+ years with a bachelor's degree or 12+ years with a high school diploma/GED administering Linux systems; TS/SCI with polygraph, IAT II/III certification, and Linux security and automation experience required.
Linux, RHEL 8, RHEL 9, GitLab, Ansible, RHEL Subscription Manager, Nagios, CentOS, Jira, Security+, PKI
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Linux Systems Administrator
Fort Meade, Maryland, United States
OnsiteFull Time
Ascension Federal Services
Ascension Federal Services: A government contractor providing IT and security services.
Bachelor's degree in Computer Science or related field; proven Linux systems administration experience; strong RHEL knowledge; scripting in Ruby/Python/Bash; familiarity with Rancher, Ansible, ElasticSearch, Redis, Solr, Data Flow, Docker, Kubernetes; excellent troubleshooting; team player; TS/SCI with Full Scope Poly clearance (will sponsor for ca...
Linux, RHEL, Docker, Kubernetes, Ansible, Rancher, ElasticSearch, Redis, Solr, Data Flow, Ruby, Python, Bash
2mo
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Linux Systems Administrator
Chantilly or McLean
$90k-$190k/yr OnsiteFull Time
CACI
CACINYSE: CACI: Provides information technology and professional services to government clients.
3+ YOEActive TS/SCI with Polygraph, Bachelor's or equivalent, 3+ years relevant experience, PeopleSoft and extensive Linux administration experience; AWS, RHEL/CentOS, Ansible, BASH/JSON/Python skills desired.
PeopleSoft, Oracle, Linux, AWS, RHEL, CentOS, Ansible Playbooks, BASH, JSON, Python
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Linux Systems Administrator
Chantilly or McLean
$90k-$190k/yr OnsiteFull Time
CACI International
CACI InternationalNYSE: CACI: Provides information technology and engineering services for government agencies.
3+ YOEActive TS/SCI with Polygraph, Bachelor's degree or equivalent, minimum 3 years relevant experience, PeopleSoft and extensive Linux administration experience; AWS, RHEL/CentOS, Ansible, Bash/JSON/Python desired.
PeopleSoft, Linux, Oracle, AWS, RHEL, CentOS, Ansible Playbooks, BASH, JSON, Python
2mo
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Linux Systems Administrator
Annapolis Junction, Maryland, United States
$149k-$201k/yr OnsiteFull Time
General Dynamics Information TechnologyNYSE: GD: Provides mission-critical IT services to government and defense organizations.
10+ YOE10+ years of related experience; strong Linux/Windows, scripting, virtualization, AD/GP; networking; TS/SCI w/ Poly; US Citizenship; onsite work.
Linux, Windows, Scripting (Bash, PowerShell), Active Directory, Group Policy, TCP/IP, DNS, DHCP, VMware, KVM, Docker, Hyper-V, Zabbix, ELK, Splunk
2mo
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Linux Systems Administrator
Annapolis Junction, Maryland, United States
$149k-$201k/yr OnsiteFull Time
GDIT
GDITNYSE: GD: Delivers IT and mission services to government agencies.
10+ YOE10+ years of related experience; TS/SCI w/ Poly; Linux and Windows; scripting; virtualization; AD/Group Policy; networking; monitoring/logging; security best practices.
Linux, Windows, Active Directory, Group Policy, Bash, PowerShell, VMware, KVM, Docker, Hyper-V, Splunk, Zabbix, ELK
3w
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Linux Systems Administrator
Laurel, Maryland, United States
$105k-$290k/yr OnsiteFull Time
Johns Hopkins University Applied Physics Laboratory
Johns Hopkins University Applied Physics Laboratory: Conducts research and engineering for national security and space.
5+ YOEBachelor's in CS/IT or equivalent experience,5+ years Linux admin,experience with classified networks,SELinux,firewalls,virtualization,containerization,backup/recovery,automation,DoD 8570 cert within 6 months,active TS/SCI w/poly required.
Red Hat, CentOS, Linux, SELinux, realm, adcli, sssd, Active Directory, VMware, KVM, Docker, Podman, Kubernetes, Gitlab, Confluence, Jira, Legato, Networker, NPE certificates, SSL/TLS, Nagios, Thruk, Salt-Stack, Puppet, Ansible, Chef, Slurm, Exchange, RSA, Radius
1w
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Linux Systems Administrator Level 1
Hanover, Maryland, United States
$96k-$178k/yr OnsiteFull Time
Lockheed Martin
Lockheed MartinNYSE: LMT: Designs and manufactures advanced aerospace, defense, and security systems.
5+ YOERequires TS/SCI with Poly, bachelor's degree in a technical discipline and 5 years of systems administration experience, or equivalent education substitution. CentOS, Rocky, RHEL, Linux, hardware, and STE experience required.
CentOS 7, Rocky 9, RHEL 9, UNIX, Windows, Ansible, PXE, Proxmox, Identity Manager (IDM), LDAP, Transport Layer Security (TLS), Windows 10, Windows 11, Linux
2w
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Sr. Linux Systems Administrator
Columbia, Maryland, United States
$145k-$165k/yr OnsiteFull Time
Astrion
Astrion: Provides engineering, cybersecurity, and mission support services.
8+ YOEActive TS/SCI clearance, bachelor\u0002s or equivalent, 8+ years Linux administration in DoD/classified environments, RHEL expertise, scripting/automation, STIG/RMF compliance, HPC and enterprise storage experience.
RHEL, Bash, Python, Ansible, PBS Professional, NetApp ONTAP, NFS, ACAS, Nessus, SCAP, SIEM, Red Hat Satellite, Podman, Kubernetes, Ansible Automation Platform, Git, Azure Government
3w
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Linux Administrator
Reston or Chantilly
OnsiteFull Time
LT Consulting
LT Consulting: Provides technical services and software engineering for the Intelligence Community.
Active TS/SCI clearance with polygraph, bachelor’s in computer science or related, Linux systems administration responsibilities.
Linux
1w
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Systems Administrator 1 - Linux
Annapolis Junction, Maryland, United States
$130k-$270k/yr OnsiteFull Time
Captivation Software
Captivation Software: Provides specialized software engineering for the intelligence and defense communities.
5+ YOEFive years of systems administration experience, technical bachelor's degree or equivalent experience, Top Secret/SCI clearance with favorable polygraph, U.S. citizenship, and Linux administration expertise.
CentOS 7, Rocky 9, RHEL 9, Linux, Customer Secure the Enterprise (STE), Ansible, PXE, Proxmox, Identity Manager (IDM), CentOS LDAP, Transport Layer Security (TLS), Windows 10, Windows 11
2d
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Senior Linux Systems Administrator - Kubernetes
Annapolis Junction, Maryland, United States
OnsiteFull Time
Quevera
Quevera: Software engineering and cloud solutions for government and defense.
10+ YOE10+ years Linux administration or engineering experience; active TS/SCI clearance with polygraph; Security+ certification; CentOS/RHEL, Kubernetes, container, and Bash experience required. Red Hat certification, Python, Ansible, Salt, and VMware preferred.
CentOS, RHEL, Kubernetes, Bash, Python, Ansible, Salt, VMware
1mo
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Linux Administrator
Aberdeen Proving Ground, Maryland, United States
OnsiteFull Time
BAE Systems
BAE SystemsLondon Stock Exchange: BA: Provides advanced defense, aerospace, and security technology solutions.
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
1w
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Linux Administrator
McLean, Virginia, United States
$82k-$130k/yr OnsiteFull Time
American Systems
American Systems: Providing strategic engineering and IT solutions for government programs.
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
2mo
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Systems Administrator - Linux
Sterling, Virginia, United States
OnsiteFull Time
Nightwing
Nightwing: Provides advanced cyber and intelligence solutions for national security.
Active TS/SCI with polygraph, technical bachelor's degree, hands-on AWS, Kubernetes, CI/CD and Linux experience; ability to build CI/CD pipelines, automate deployments, and operate in secure, collaborative environments.
AWS, Kubernetes, ArgoCD, Jenkins, Lambda, CloudFormation, Linux, CI/CD
1mo
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Windows & Linux Systems Administrator
Washington, District Of Columbia, United States
$110k-$140k/yr HybridFull Time
ASM ResearchNYSE: ACN: Provides IT and healthcare services to government agencies.
3+ YOE3+ years Windows/Linux systems administration experience, Active Directory, GPO, SCCM/MECM, virtualization, PowerShell and Bash proficiency; bachelor\u0002s degree or equivalent and ability to obtain Public Trust clearance.
Microsoft SCCM/MECM, Azure Update Management (AUM), Group Policy Objects (GPO), Active Directory, DNS, DHCP, SSH, cron, NFS, Apache, Nginx, Microsoft Universal Print, Hyper-V, VMware, Azure VMs, Bash, PowerShell, Ansible, Puppet
2d
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Systems Administrator – Lead (LINUX)
Washington or Arlington
$102k-$155k/yr OnsiteFull Time
ASRC Federal
ASRC Federal: Provides engineering and IT services to federal government agencies.
8+ YOERequires 8+ years of IT experience, 5+ years of Linux/UNIX administration, technical leadership, SAN and security-control experience, bachelor's degree or equivalent experience, and active Top Secret clearance with SCI eligibility.
Linux, UNIX, IT, DBMS, STIG, ACAS, SAN, VMware vSphere
2mo
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Linux System Administrator
Annapolis Junction or Columbia
$101k-$129k/yr OnsiteFull Time
Intelliforce
Intelliforce: Provides engineering and technical solutions for the intelligence community.
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
2mo
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Systems Administrator, Lead (Linux/Windows)
Arlington, Virginia, United States
$150k-$175k/yr OnsiteFull Time
American Systems
American Systems: Providing engineering and IT solutions to federal government agencies.
8+ YOEActive Top Secret/SCI clearance, 8+ years IT systems administration with 3–5 years Linux, DoD 8140 IAT Level II (e.g., Security+ CE), experience with STIGs/RMF, containerization, automation, virtualization, and strong Bash skills.
Linux, Windows, vSphere, Docker, Podman, Ansible, OpenLDAP, Oracle, VMware, Bash, DNS

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