322 linux systems administrator jobs at 111 companies in Centreville, 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
3mo
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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
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
1mo
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Linux Systems Administrator II
Fort Meade, Maryland, United States
$104k-$218k/yr OnsiteFull Time
CACI
CACINYSE: CACI: Provides information technology and professional services to government clients.
10+ YOEHands-on RHEL administration, patching, virtualization, security compliance, and system integration; COMPTIA Security+ and substantial systems administration experience required.
Red Hat Enterprise Linux (RHEL), Juniper, Cisco, Palo Alto, Ansible, Nutanix, Rubrik, Nomad, SALT, LibreNMS, NetBox, AWS, Azure
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
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
3d
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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
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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Linux System Administrator
Annapolis Junction, Maryland, United States
$130k-$150k/yr OnsiteFull Time
Red Arch Solutions
Red Arch Solutions: Provides IT engineering solutions for the intelligence community.
3+ YOE3+ years of hands-on Linux administration (RHEL/CentOS or similar), IBM Enterprise Storage, Veritas NetBackup, Nessus, YUM, system hardening, patching, scripting.
IBM Enterprise Storage, Veritas NetBackup, Nessus, YUM, NSF security frameworks
3w
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LINUX SYSTEMS ENGINEER
Greenbelt, Maryland, United States
$120k-$150k/yr HybridFull Time
MCSG Technologies
MCSG Technologies: Provides information technology, engineering, and healthcare support services.
12+ YOE12+ years Linux systems administration (RHEL/Ubuntu), shell scripting, Ansible, networking/TCP-IP, patch and backup management, production monitoring, and ability to meet NASA access/citizenship requirements.
Ubuntu, RHEL, Ansible, Apache, Confluence, Gitlab, Docker, IBM BigFix, SentinelOne, Red Hat Satellite
3w
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Linux System Administrator
College Park, Maryland, United States
$70k-$130k/yr HybridFull Time
Dark Wolf Solutions
Dark Wolf Solutions: Provides cybersecurity and software development services to defense agencies.
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
3mo
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Linux System Administrator
Annapolis Junction, Maryland, United States
OnsiteFull Time
CDIT
CDIT: Provides IT, software development, and cybersecurity for government agencies.
3+ YOEExperienced Linux administrator with storage, backup, security, and patching expertise in enterprise environments.
IBM Enterprise Storage, Veritas NetBackup, Nessus, YUM, Bash, Python
2mo
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Linux Systems Admin L1
Annapolis Junction, Maryland, United States
OnsiteFull Time
Jovian Concepts
Jovian Concepts: Provides technical services and engineering to the intelligence community.
5+ YOETS/SCI clearance with polygraph required; Bachelor’s in a technical discipline or 5+ years SA experience; DoD 8570 IAM Level I; Linux administration (CentOS 7, Rocky 9, RHEL 9); hardware installation and server upgrades.
CentOS 7, Rocky 9, RHEL 9, Ansible, PXE, Proxmox, Identity Manager (IDM), LDAP, Windows 10, Windows 11, Transport Layer Security (TLS), Customer Secure the Enterprise (STE)
3w
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Linux System Administrator
Fort Meade or Annapolis Junction
$150k-$190k/yr OnsiteFull Time
CTC Group
CTC Group: Provides specialized engineering and technical services to defense agencies.
5+ YOEActive TS/SCI with polygraph, bachelor\u0002s in technical discipline (or 5 yrs experience), 5+ years systems administration experience, CWIP IAT certifications, RH/MCSA certifications, A+/Network+/SSCP, expertise in Linux, networking, virtualization, automation, and vulnerability remediation.
Cisco, Palo Alto, Ansible, Bash, Python, Nessus, Docker, Kubernetes, IPsec, VPN
2mo
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Platform / Linux System Administrator
Annapolis Junction, Maryland, United States
$125k-$240k/yr OnsiteFull Time
Synergy ECP
Synergy ECP: Provides cybersecurity and systems engineering for defense agencies.
Manage and secure enterprise Linux environments; strong Linux administration, Bash/Python scripting, monitoring, networking, and security skills. TS/SCI w/ Polygraph required; U.S. citizenship required.
Linux, Bash, Python

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