Linux System Administrator
Listed on 2026-03-12
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IT/Tech
Cybersecurity, Systems Engineer, IT Support
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!
You must currently hold an active Secret clearance with eligibility to be cleared for Top Secret and Special Access Programs.
Primary Responsibilities- Configuration, setup and maintenance of numerous air-gapped Information Systems (IS) and networks
- Verify and maintain security configuration of the multiple Information Systems
- Secure and maintain all components IAW established Security Technical Implementation Guides (STIG) and customer directives
- Manage daily break/fix scenarios, updates, backups, monitoring and user management
- Patch and anti-virus definition management
- Hardware troubleshooting (COTS PC, printer, networks, and encryption hardware)
- Monitor customer request and tasking to ensure requirements are addressed in a timely manner according to priority
- Strong desire to adhere to best practices and provide the highest quality of service and support.
- Bachelors’ 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 in Linux Server and workstation environments.
- Experience in the design, implementation, and sustainment of Virtualized Machine (VM) architecture
- Experience with system configuration and apply security controls under Risk Management Framework.
- Demonstrated understanding of computer network concepts (network hardware, cable management, IP address management).
- Working knowledge of Windows operating systems.
- Excellent customer service skills and clear communications both written and oral
- Comfortable working in an environment without immediate supervision
- Experience with Red Hat Satellite.
- Experience with container management to include Kubernetes, Podman, and Docker
- 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 Dev Ops best practices and system development lifecycle automation
- Experience in Kubernetes and other Dev Ops container management methodologies and automation
- 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
If you’re looking for comfort, keep scrolling. At Leidos, we outthink, outbuild, and outpace the status quo — because the mission demands it. We’re not hiring followers. We’re recruiting the ones who disrupt, provoke, and refuse to fail. Step 10 is ancient history. We’re already at step 30 — and moving faster than anyone else dares.
Original PostingFor U.S. Positions:
While subject to change based on business needs, Leidos reasonably anticipates that this job requisition will remain open for at least 3 days with an anticipated close date of no earlier than 3 days after the original posting date as listed above.
$87,100.00 - $
The Leidos pay range for this job level is a general guideline only and not a guarantee of…
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