Linux System Administrator

Leidos Inc; Omaha (NE); On-site; USD 87,100 - 157,450; Full time

Benefits offered by this job

Health and Wellness programs

Income Protection

Paid Leave

Retirement

Job summary

Leidos Inc. in Omaha, NE is seeking a Linux Systems Administrator to join the Corporate Information Security team within Digital Modernization.

You will work across a heterogeneous environment with Linux and Windows systems, focusing on security and high performance computing. Requirements include an active Secret clearance with eligibility for Top Secret and SAP programs, DoD 8140/8570 IA certifications, and hands-on containerization with Kubernetes, Docker, and Podman.

Qualifications

• Bachelor's degree with 4–8 years of experience, or equivalent experience per the posting.
• Current DoD 8140/8570 IA certification for IAT II (Security+CE or higher).
• Active Secret clearance with eligibility to obtain Top Secret and SAP clearance.
• Hands-on experience with containerization: Kubernetes, Docker, Podman in production.

Skills

Customer service

Clear communication

Self‑direction

Education

Bachelor's degree

Associate degree

High School diploma

Tools

Kubernetes

Docker

Podman

Red Hat Satellite

Azure

AWS

ACAS/Nessus

Job description

Description

Leidos Corporate Information Security team, within the Digital Modernization sector, currently has an opening for a Linux Systems Administrator in our Omaha, NE office. This position is an exciting opportunity to use your experience providing advanced computing solutions in a heterogeneous environment. We use a wide array of Linux and Windows systems in a tightly integrated environment with a focus on security and high performance computing. If you want to work in a diverse environment that allows you to get into every aspect of supporting complex computing systems this is a great opportunity!

Clearance Requirement

You must currently hold an active Secret clearance with eligibility to be cleared for Top Secret and Special Access Programs.

Basic Qualifications

• Bachelor's degree and 4-8 years of experience, Associate degree and 6-8 years, or High School diploma and 8 or more years of experience may be considered in lieu of degree.
• Current DoD 8140/8570 compliant IA certification for IAT II (Security+CE or higher).
• Must hold current Secret clearance with eligibility to obtain Top Secret and Special Access Programs clearance.
• Hands‑on experience with containerization technologies, including Kubernetes, Docker, and Podman, in production environments.
• Experience in the design, implementation, and sustainment of containerized and Virtualized Machine (VM) architectures.
• Experience with system configuration and applying security controls under the Risk Management Framework.
• Demonstrated 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 communications, both written and oral.
• Comfortable working in an environment without immediate supervision.

Preferred Qualifications

• Experience with Red Hat Satellite.
• Advanced experience with Kubernetes cluster management, container orchestration, and automation.
• Experience working with cloud systems (Azure, AWS).
• Understanding of Special Access Program (SAP) Information Systems (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, especially as applied to containerized environments.
• Current experience supporting Special Access Program (SAP) Information Systems (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.
• Knowledgeable in audit log reduction tools (Graylog or Splunk).
• Advanced DoDI 8570 certification.
• Shell scripting.
• Windows or Linux certifications.
• In‑depth hardware experience.

Original Posting: June 8, 2026

Pay Range: $87,100.00 – $157,450.00

Employment benefits include competitive compensation, Health and Wellness programs, Income Protection, Paid Leave, and Retirement. These benefits reflect the importance of the work we do for our customers.

Commitment to Non-Discrimination

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.