Senior Linux Administrator – TS/SCI

Leidos

Senior Linux Engineer designing Infrastructure as Code and managing Red Hat environments for Leidos. Responsible for server administration, automation, and mentoring junior staff.

Posted 6/13/2026full-timeHampton • Virginia • 🇺🇸 United StatesSenior💰 $92,300 - $166,850 per yearWebsite

Tech Stack

Tools & technologies

AnsibleDockerKubernetesLinuxOpenShiftPackerPerlPuppetPythonSaltStackShell ScriptingTerraformTypeScript

About the role

Key responsibilities & impact

Responsible for the administration, and deployment of server hardware, Red Hat Enterprise Linux 9 Operating Systems, and critical applications.
Design, develop, and maintain Ansible playbooks and roles for infrastructure automation.
Implement and manage configuration management using Ansible across our RHEL systems.
Automating deployments using Ansible Automation Platform (AAP), Terraform, and Packer.
Troubleshoot and resolve complex issues in Ansible deployments and RHEL environments.
Optimize existing Ansible code and RHEL configurations for improved performance and efficiency.
Collaborate with other teams to integrate Ansible automation into CI/CD pipelines.
Manage and Maintain RHEL systems, including patch management, upgrades, and security hardening.
Provide technical leadership and mentorship to junior team members.
Stay current with industry trends, best practices, and developments in Ansible, RHEL, and related technologies.
Research emerging tools and technologies that help improve automation, security and performance.
Ensure compliance with current security policies and remediations.
Proactively monitor and measure systems performance to detect trends and catch problems before users are impacted.
Work closely with other support teams to ensure incident events are handled in a timely manner.
Administer and maintain Satellite/Capsule management systems.
Routinely apply security and application patches to systems and container images, ensuring that vulnerabilities are mitigated, and software operates effectively.
Handle incoming technical escalations from Service Desk, Network Security Operations Center, Tier II, and other support teams.
Document and map architecture of the current RHEL environment and support the development of an Infrastructure Automation roadmap.
Assist with retrospective related activities and support various efforts related to operational improvements.
Contribute to documentation in the Knowledge Base, Standard Operating Procedures (SOP), work instructions, and job aids.
Continuously cross-train to also support other technical tasks and responsibilities.

Requirements

What you’ll need

Bachelor’s degree in related discipline or additional years of relevant experience will be considered in lieu of degree.
Must have a active and current DoD TS/SCI Clearance.
10+ years of Linux Administration.
Experience with containerization products such as Podman, Docker, Kubernetes, RedHat OpenShift, or Rancher.
Experience with configuration management systems like Puppet, Ansible, or Salt.
Hands-on experience with virtualization technologies.
Shell scripting experience with at least one scripting language: Bourne shell, sed, awk, Perl, or python.
Understanding of LDAP and SSO technologies.
Strong focus on automation.
Familiar with writing Infrastructure as Code (IaC).
Strong commitment to customer service and customer satisfaction.
Ability to think strategically and proactively (rather than reactionary).
Ability to work in a fast paced, highly dynamic environment and 'learn on the job'.

Benefits

Comp & perks

Health and Wellness programs
Income Protection
Paid Leave
Retirement

ATS Keywords

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Applicant Tracking System Keywords

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Hard Skills & Tools

Linux AdministrationAnsibleTerraformPackerContainerizationShell scriptingInfrastructure as CodeConfiguration managementVirtualization technologiesRHEL

Soft Skills

Technical leadershipMentorshipCustomer serviceStrategic thinkingProactive problem solvingAdaptabilityCollaborationDocumentationOperational improvementsCross-training

Certifications

DoD TS/SCI ClearanceBachelor’s degree in related discipline