Senior Linux Administrator; TS​/SCI

Senior Linux Engineer (TS/SCI cleared)

While others look for solutions, we change the equation. Come #Outsmart Outdo at Leidos!

Leidos is looking for a TS/SCI cleared Senior Linux Engineer to design and implement Infrastructure as Code for various deployments and to manage servers and related services. The Engineer will be responsible for implementing, managing, installing and upgrading our Red Hat Linux environments. The job duties will be performed on site at Langley Air Force Base, VA.

• Responsible for the administration and deployment of server hardware, RHEL 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 RHEL systems.
• Automate deployments using Ansible Automation Platform, 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, work instructions, and job aids.
• Continuously cross-train to also support other technical tasks and responsibilities.

• Bachelor’s degree in a related discipline or additional years of relevant experience considered in lieu of degree.
• Must have an active and current DoD TS/SCI Clearance.
• 10+ years of Linux Administration.
• Experience with containerization products such as Podman, Docker, Kubernetes, Red Hat Open Shift, 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”.

• Deep understanding of QEMU/KVM and RHEL networking.
• Expert in the Administration of Red Hat Satellite.
• Expert in the Administration and use of Ansible Automation Platform / Ansible Tower.

Pay Range: $92,300 - $166,850. The Leidos pay range for this job level is a general guideline only and not a guarantee of compensation or salary. Additional factors considered in extending an offer include responsibilities of the job, education, experience, knowledge, skills, and abilities, as well as internal equity, alignment with market data, applicable bargaining agreement (if any), or other law.

All qualified applicants will receive consideration for employment without regard to sex, race, ethnicity, age, national origin, citizenship, religion, physical or mental disability, medical condition, genetic information, pregnancy, family structure, marital status, ancestry, domestic partner status, sexual orientation, gender identity or expression, veteran or military status, or any other basis prohibited by law. Leidos will also consider for employment qualified applicants with criminal histories consistent with relevant laws.