82 linux system administrator jobs at 37 companies in Halfway, MD

2mo
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Linux System Administrator
Kearneysville, West Virginia, United States
RemoteFull Time
OneZero Solutions
OneZero Solutions: Provides cybersecurity and IT services to federal government agencies.
5+ YOE5+ years Linux administration (RHEL) in enterprise environments, VMware vSphere, Ansible, scripting (Bash/Python), CompTIA Security+, experience with system hardening, patching, and federal compliance (DISA STIGs); Secret clearance required.
Red Hat Enterprise Linux (RHEL), VMware vSphere (ESXi/vCenter), BMC TrueSight Server Automation (TSSA), Ansible, DISA STIGs, Bash, Python, Docker, Kubernetes
1mo
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Linux System Administrator
Fort Detrick, Maryland, United States
$98k-$163k/yr HybridFull Time
ManTech
ManTech: Provides technology solutions for defense and intelligence agencies.
7+ YOEBachelor's degree and 7+ years enterprise Linux infrastructure experience (OracleLinux). Experience with scripting (Shell, Perl, Python, Go), DevOps, AWS, DISA STIGs/SRGs, CloudWatch/SNS monitoring. Must obtain CompTIA Security+ and AWS SysOps certifications; U.S. citizenship and Public Trust/Tier 3 suitability required.
AWS, CloudWatch, SNS, OracleLinux, Shell, Perl, Python, Go, DISA STIGs, SRGs, RMF, SAP/HANA
2w
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Senior Linux Systems Administrator
Washington or Sterling
$104k-$166k/yr RemoteFull Time
Peraton
Peraton: National security and mission-critical government technology services provider.
5+ YOEActive U.S. citizenship and Secret clearance, 5+ years in large multi-site Linux administration, proficiency with RHEL/Oracle Linux, automation (Ansible/AAP/Puppet), troubleshooting, and security remediation.
Red Hat, Oracle Linux, AAP, Satellite, Puppet, Ansible, vCenter, VMware vSphere, Apache HTTP Server, Openshift 4.x, AD/LDAP, CI/CD, Certificates, SSL/TLS, Oracle, MySQL, PostgreSQL
3w
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System Administrator, Senior
Winchester, Virginia, United States
$62k-$141k/yr OnsiteFull Time
Booz Allen Hamilton
Booz Allen HamiltonNYSE: BAH: Consulting and technology services for government and commercial clients
3+ YOE3+ years system administration with on-premise and cloud (AWS/Azure/GCP), Windows/Linux administration, virtualization, networking/security, backup and DR, scripting (PowerShell/Bash/Python), Top Secret clearance, HS diploma/GED.
AWS, Azure, Google Cloud, Windows, Linux, VMware, Hyper-V, Docker, Kubernetes, PowerShell, Bash, Python
3w
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System Administrator, Senior
Winchester, Virginia, United States
$62k-$141k/yr OnsiteFull Time
Booz Allen Hamilton
Booz Allen HamiltonNYSE: BAH: Provides technology and management consulting services to diverse organizations.
3+ YOE3+ years system administration with on-premise and cloud (AWS/Azure/GCP), Windows/Linux, virtualization, scripting (PowerShell/Bash/Python), backup/disaster recovery, and Top Secret clearance.
AWS, Azure, Google Cloud, Windows, Linux, VMware, Hyper-V, PowerShell, Bash, Python, Docker, Kubernetes
2w
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System Administrator
Herndon, Virginia, United States
OnsiteFull Time
Node.Digital
Node.Digital: Provides digital automation and AI solutions for government and commercial enterprises.
Manage cloud R&D environments, perform system administration/O&M, backups, patching, security hardening, firewall/SSL/x509/PKI implementation, support deployments; US citizenship required.
Linux, Windows, SSL, x509, PKI, firewalls, middleware, Cloud
1w
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Senior Linux Systems Administrator
Washington or Sterling
$104k-$166k/yr RemoteFull Time
Peraton
Peraton: Provides advanced technology and mission support for government agencies.
5+ YOEU.S. citizen with active Secret clearance; 5+ years in large multi-site production Linux environments; strong RHEL/Oracle Linux, automation, Ansible, troubleshooting, and CVE mitigation experience.
RHEL, Oracle Linux, Ansible, Openshift 4.x, vCenter, VMWare vSphere, Apache HTTP Server, AAP, Satellite, Puppet, Oracle, MySQL, PostgreSQL, CVE
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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
1w
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Linux Systems Engineer
Sterling, Virginia, United States
$104k-$218k/yr OnsiteFull Time
CACI International
CACI InternationalNYSE: CACI: Provides information technology and engineering services for government agencies.
7+ YOE7+ years Linux systems engineering experience, TS/SCI with polygraph required, strong Linux administration, scripting (Bash/Python/Perl), automation (Ansible/Puppet/Chef), containerization (Docker/Kubernetes), networking knowledge, and compliance experience.
Bash, Python, Perl, Ansible, Puppet, Chef, Docker, Kubernetes, SELinux, AWS, Azure, GCP, Cisco
1mo
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Sr. Linux Systems Engineer
Washington or Germantown
$143k-$178k/yr OnsiteFull Time
GDIT
GDITNYSE: GD: Delivers IT and mission services to government agencies.
8+ YOEBachelor's in IT/CS, 8+ years Linux systems administration, deep Linux proficiency (Red Hat/CentOS/Ubuntu), scripting (Bash/Python/Perl), config management (Ansible/Puppet/Chef), virtualization/cloud (VMware/KVM/Hyper-V, AWS/Azure), automation, networking knowledge, US citizenship, DOE Q or TS clearance required.
Automation Tools, Linux, Red Hat, CentOS, Ubuntu, Bash, Python, Perl, Ansible, Puppet, Chef, VMware, KVM, Hyper-V, AWS, Azure, Docker, Kubernetes, DISA STIGs, NIST, CIS benchmarks
1w
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Linux Systems Engineer
Sterling, Virginia, United States
$104k-$218k/yr OnsiteFull Time
CACI
CACINYSE: CACI: Provides information technology and professional services to government clients.
7+ YOETS/SCI with polygraph required, typically 7+ years experience, bachelor\u0002s or equivalent, strong Linux administration, scripting (Bash/Python/Perl), automation, networking, containerization, cloud familiarity, and security/hardening experience.
Linux, Bash, Python, Perl, Ansible, Puppet, Chef, Docker, Kubernetes, SELinux, Cisco, AWS, Azure, GCP
2w
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Systems Administrator
Herndon, Virginia, United States
$150k-$165k/yr OnsiteFull Time
Bridge Core
Bridge Core: Provides technical services and cybersecurity solutions to government agencies.
11+ YOE11+ years systems design and engineering experience; troubleshoot AWS and Linux; DevOps/systems engineering background; GitHub and scripting experience; adherence to security standards; mentoring skills.
AWS, Linux, GitHub, Python, Ansible, Opentext NNMi, Cisco NSO, Chet, Puppet, Agile Methodology, Scrum
1d
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Systems Administrator Journeyman
Alexandria or Kearneysville
$74k-$120k/yr HybridFull Time, Contract
CyKor: Provides IT modernization and cybersecurity solutions for federal agencies.
3+ YOERequires 3–5+ years of systems administration experience, Windows Server and/or Linux expertise, enterprise networking knowledge, classified-environment experience, active Secret clearance, and Security+ CE or equivalent preferred.
Windows Server, Linux, Active Directory, Group Policy, DNS, DHCP, TCP/IP, VMware, Cisco, Cisco ISE, PowerShell, Bash, SIPRNet, DISA STIGs, Comply-to-Connect (C2C), PKI, CAC
2mo
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Systems Administrator
Herndon, Virginia, United States
$101k-$178k/yr OnsiteFull Time
Lockheed Martin
Lockheed MartinNYSE: LMT: Designs and manufactures global security and aerospace systems.
3+ YOETop Secret/SCI with CI required; 3+ years systems administration experience; 1+ year administering Int-A/B/C enclaves; Windows/Linux familiarity; scripting (PowerShell, Bash, Python); BS preferred in CS/Systems/IT or equivalent certifications/experience.
Microsoft PowerShell, Bash, Python, Terraform, Ansible, VMware, Proxmox, Nutanix, Docker, Kubernetes, Microsoft Windows Server, Microsoft Active Directory, DNS, GPOs, YUM, DNF, APT, Microsoft Windows Update, Microsoft WSUS, Logstash, ElasticSearch, OpenSearch, Nagios, Nessus, Rapid7, CIS, DISA STIGS, TCP/IP, UDP, ICMP, Route53, NetApp ONTAP, Proxmox PBS, Dell PowerStore, AD CS, PKI, NTP, DHCP
1mo
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Systems Administrator I
Frederick, Maryland, United States
$45/hr OnsiteFull Time
Frederick County Public Schools
Frederick County Public Schools: Public school district providing K-12 education in Frederick County.
4+ YOEManage and maintain enterprise IT/IS infrastructure, perform systems administration, implement security and backups, automate tasks with scripts, and provide incident/change management; requires 4 years systems administration experience and relevant IT certifications.
VBS, PowerShell, Windows, Linux, Active Directory, NAS, TCP/IP, Ethernet, VLAN, DHCP, DNS, SNMP, SMTP, iSCSI, Microsoft SCOM, WUG, Wireshark, VMware, Virtual Desktop Infrastructure, Microsoft SCCM
2mo
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Systems Administrator Expert
Herndon, Virginia, United States
OnsiteFull Time
VTG
VTG: Provides force modernization and digital transformation for defense agencies.
11+ YOE11+ years systems design and engineering experience; degree in CS/CE; hands-on AWS/Azure, Python, Ansible, Opentext NNMi, Cisco NSO; DevOps, Linux, GitHub; strong security and Agile experience.
AWS, Azure, Python, Ansible, Opentext NNMi, Cisco NSO, Chet, Puppet, GitHub, Linux
1w
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Systems Administrator - Expert
Herndon, Virginia, United States
$170k-$210k/yr OnsiteFull Time
Cherokee Federal
Cherokee Federal: Provides specialized professional and technical services to federal government agencies.
11+ YOEUS citizen with active TS/SCI full scope poly required; 11+ years in system engineering/IT security; hands-on AWS/Azure, Linux, Python, Ansible, GitHub; DevOps and security compliance experience; bachelor’s/master’s preferred.
AWS, Azure, Python, Ansible, Opentext NNMi, Cisco NSO, GitHub, Linux, Puppet
1mo
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Systems Administrator (Experienced or Senior)
Herndon, Virginia, United States
$103k-$174k/yr OnsiteFull Time
Boeing
BoeingNYSE: BA: Designs and manufactures aircraft, defense systems, and space technology.
3+ YOEActive TS/SCI clearance with Full Scope Polygraph, 3+ years systems administration experience (Linux/Windows), familiarity with AD, DNS, DHCP, virtualization, cloud, security, and shift-work availability.
Active Directory, Group Policy, DNS, DHCP, AHV, VMWare ESXi, Hyper-V, AWS, Azure, VDI, Confluence, Jira
1mo
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Systems Administrator (Experienced or Senior)
Herndon, Virginia, United States
$103k-$174k/yr OnsiteFull Time
Boeing
BoeingNYSE: BA: Designing and manufacturing commercial aircraft and defense systems.
3+ YOEActive TS/SCI with Full Scope Polygraph required, 3+ years systems administration (Linux/Windows), Active Directory, DNS/DHCP, virtualization or cloud (AHV/VMWare/Hyper-V/AWS/Azure), Confluence/Jira, shift-work availability.
Active Directory, Group Policy, DNS, DHCP, AHV, VMWare ESXi, Hyper-V, AWS, Azure, VDI, Confluence, Jira
1w
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Linux Systems Engineer (TS/SCI)
Herndon, Virginia, United States
$95k-$140k/yr OnsiteFull Time
Vantor
Vantor: Providing AI-powered spatial intelligence and high-resolution Earth observation.
3+ YOEU.S. citizen with active TS/SCI and ability to obtain CI polygraph; bachelor’s in related field or equivalent experience; minimum 3 years Linux systems administration/systems engineering, DevOps infrastructure, LAN/WAN, DoD cyber requirements, and hardware support.
Linux, HPC, Infiband, Juniper, GPUs