Linux System Administrator

Leidos; Omaha (NE); On-site; USD 70,000 - 90,000; Full time

Job summary

Leidos is hiring a Linux Systems Administrator to join their Corporate Information Security team in Omaha, NE. The successful candidate will provide advanced computing solutions across a mix of Linux and Windows systems with a strong focus on security and high-performance computing.

Applicants must have a Bachelor’s degree with at least 4-8 years of related experience and a current DoD 8140/8570 compliant IA certification. The preferred candidate will have experience with cloud systems and advanced Kubernetes management.

Qualifications

• 4-8 years of experience in a relevant role.
• Hands-on experience with containerization technologies.
• Experience with risk management and applying security controls.

Responsibilities

• Provide advanced computing solutions across Linux and Windows systems.
• Ensure security compliance and manage containerized environments.
• Work independently without immediate supervision.

Skills

Linux administration

Windows systems knowledge

Containerization (Kubernetes, Docker, Podman)

Network management

Excellent customer service

Education

Bachelor’s degree in relevant field

DoD 8140/8570 compliant IA certification for IAT II

Tools

Red Hat Satellite

Azure

AWS

NIST 800-53

Graylog

Splunk

Job description

Linux Systems Administrator

Leidos Corporate Information Security team, within the Digital Modernization sector, is hiring a Linux Systems Administrator in our Omaha, NE office. This role involves providing advanced computing solutions across a heterogeneous environment of Linux and Windows systems focused on security and high‑performance computing.

Security Clearance: Must hold an active Secret clearance and eligibility for Top Secret and Special Access Programs.

Basic Qualifications

• Bachelor’s degree and 4‑8 years experience, Associate degree and 6‑8 years, or High School diploma and 8+ years may be considered.
• Current DoD 8140/8570 compliant IA certification for IAT II (Security+CE or higher).
• Hands‑on experience with containerization technologies including Kubernetes, Docker, and Podman in production.
• Experience designing, implementing, and sustaining containerized and virtualized machine architectures.
• Experience with system configuration and applying security controls under the Risk Management Framework.
• Understanding of computer network concepts (network hardware, cable management, IP address management).
• Working knowledge of Linux and Windows operating systems.
• Excellent customer service skills and clear written and oral communication.
• Ability to work independently without immediate supervision.

Preferred Qualifications

• Experience with Red Hat Satellite.
• Advanced Kubernetes cluster management, orchestration, and automation.
• Experience with cloud systems (Azure, AWS).
• Understanding of Special Access Program (SAP) IS requirements.
• Experience with IS implementation as defined in the Joint Special Access Program Implementation Guide (JSIG).
• Understanding of DevOps best practices and system development lifecycle automation for containerized environments.
• Current support experience for SAP IS.
• Detailed experience with the Risk Management Framework.
• Experience with NIST 800‑53.
• Documented Computing Environment (CE) training.
• Experience in ACAS or Nessus vulnerability scanning.
• Knowledge of audit log reduction tools (Graylog, Splunk).
• Advanced DoDI 8570 certification.
• Shell scripting.
• Windows or Linux certifications.
• In‑depth hardware experience.

Equal Employment Opportunity Leidos will consider all qualified applicants irrespective of sex, race, ethnicity, age, national origin, citizenship, religion, disability, and other protected characteristics.