ManTech: Provides technology solutions for defense and intelligence agencies.
3+ YOEInstall, configure, and secure enterprise Linux systems (RHEL/Ubuntu) in classified DoD environments; 3+ years Linux administration; IAT Level II cert; Linux OS certification; scripting and automation (Bash, Python, Ansible); AD, NFS, DNS, LDAP skills.
Red Hat Enterprise Linux, Ubuntu, VMware, Bash, Python, Ansible, Splunk, ACAS (Tenable Nessus), Host Based Security System (HBSS), Kubernetes, Docker, AWS, Azure GovCloud
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.
Watershed Security: Specialized cybersecurity and information technology solutions for government agencies.
3+ YOE3+ years UNIX/Linux administration experience; system backup/recovery, software/hardware installation, security and library management, TCP/IP and network security tools, sizing/performance/tuning, troubleshooting; active DoD Top Secret and IAT II designation required.
Altamira TechnologiesNYSE: PSN: Provides data analytics and engineering for national security missions.
Experienced Linux system administrator for CDS sustainment: virtualization, Ansible automation, Git, Docker, Python/Bash scripting, SNMP/monitoring, patching, incident response; TS/SCI with CI poly required.
Red Hat Linux 7/8/9, Ansible, Git, Docker, Python, Bash, VMWare ESXi, ProxMox, SNMP, Cross Domain Solution (CDS)
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.
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.
Tier 2 Linux Administrator - TS/SCI with polygraph
Fort Belvoir, Virginia, United States
$111k-$150k/yrOnsiteFull Time
General Dynamics Information TechnologyNYSE: GD: Provides mission-critical IT services to government and defense organizations.
5+ YOEActive TS/SCI with polygraph, DoD 8570 IAT II, 5+ years systems administration experience with RHEL/Linux and Windows, proficiency in AD/DNS/DHCP, ServiceNow experience, and strong troubleshooting and communication skills.
Red Hat Enterprise Linux (RHEL), CentOS, Ubuntu, Windows 10, Server 2012, Server 2016, Active Directory, Group Policy, DNS, DHCP, DFS, LDAP, Java, ServiceNow, NETS, Microsoft SCCM, PowerShell, VMware, Citrix, VMware User Experience Management (UEM), Microsoft Exchange
Tier 2 Linux Administrator - TS/SCI with polygraph
Fort Belvoir, Virginia, United States
$111k-$150k/yrOnsiteFull Time
GDITNYSE: GD: Delivers IT and mission services to government agencies.
5+ YOEActive TS/SCI with Polygraph required; 5+ years systems administration experience; strong Linux (RHEL/CentOS/Ubuntu) and Microsoft enterprise skills; DoD 8570 IAT Level II (e.g., Security+ CE) required; bachelor’s or equivalent.
Linux, Microsoft Enterprise Technologies, Red Hat Enterprise Linux (RHEL), RHEL, CentOS, Ubuntu, Windows 10, Server 2012, Server 2016, Active Directory, Group Policy, DNS, DHCP, DFS, LDAP, Java, ServiceNow, NETS, ITIL v3, Microsoft SCCM, PowerShell, VMware, Citrix, VMware User Experience Management (UEM), Microsoft Exchange, Video conferencing, VoIP
The Tatitlek Corporation: Provider of government contracting, facility maintenance, and technology services.
6+ YOE6+ years system administration experience (UNIX/Linux/Windows). Must hold DoD Secret clearance (SSBI) or be able to obtain, maintain IAT Level 2 (DoD 8140.01) and OS/IA certifications; experience with Redhat, Solaris, WSUS, GPOs, and enterprise system administration.
UNIX, Linux, Windows, Redhat, Solaris, Thin Client, Sudo, IDM, NTFS, CIFS, DNS, RDP Client, WSUS, GPOs, Windows Server, Windows Workstations
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.
Astrion: Provide engineering and mission support services to federal government agencies.
6+ YOE6+ years Unix/Linux system administration experience; backup/recovery, security management, hardware/software installation, TCP/IP and firewall knowledge; IAT III designation with T5; Top Secret clearance required.
BAE SystemsLondon Stock Exchange: BA: Designs and manufactures advanced defense and aerospace systems.
6+ YOEBachelor's degree and 6+ years relevant experience; Top Secret/SCI eligibility with polygraph; expertise with Linux (RHEL, RockyOS), BASH, Linux administration, configuration management (Ansible, Puppet, Terraform, CloudFormation); cloud and scripting skills preferred.
Linux, Red Hat, RHEL, RockyOS, BASH, Ansible, Puppet, Terraform, CloudFormation, Python, Amazon Web Services (AWS), Google Cloud, Microsoft Azure, Kubernetes, OpenShift
BAE SystemsLondon Stock Exchange: BA: Designs and manufactures advanced defense and aerospace systems.
11+ YOEBachelor's degree and 11+ years relevant experience; Expert Linux administration (Red Hat/RHEL/RockyOS), BASH/Python, Ansible/Puppet/Terraform/CloudFormation, cloud platforms, and Top Secret/SCI eligibility.
Linux, Red Hat, RHEL, RockyOS, BASH, Ansible, Puppet, Terraform, CloudFormation, Python, Amazon Web Services (AWS), Google Cloud, Microsoft Azure, Kubernetes, OpenShift
Senior Systems Administrator/Linux SME-TS/SCI (CI-Poly Eligible)
Reston, Virginia, United States
OnsiteFull Time
Vibrint: Provides mission-critical systems and data analysis for national security.
10+ YOE10+ years Linux system administration (RHEL), automation (Bash/Expect), Ansible, LDAP, patching/repositories, CI/Poly eligible, BS in CS or related field.
Bash, Expect, Red Hat Enterprise Linux (RHEL), Satellite, Ansible, LDAP, SE Linux, Git, Python, Perl, Korn shell
Linux Systems Administrator - HPC (TS/SCI Clearance Required)
Alexandria or Chantilly or Springfield or Saint Louis
OnsiteFull Time
North Point Technology: Technology services and engineering for federal government missions.
Active TS/SCI clearance, strong Linux/RHEL administration, HPC cluster (Slurm/MPI) experience, STIG/IAVA remediation, VM backup experience, scripting for automation, and DoD 8570-compliant certification (e.g., Security+).
D2 Consulting: Provides IT engineering and cybersecurity services to federal agencies.
5+ YOEActive TS/SCI clearance, 5+ years Linux systems engineering experience, Nutanix and Ansible expertise, scripting (Bash/Python), RHEL administration, and bachelor\u0002s degree or equivalent.