Linux System Administrator

Description

Leidos is seeking a Systems Administrator who will be a member of the ESSC (Enroute System Support Complex) Support team working on the Federal Aviation Administration's (FAA's) En Route Automation Modernization (ERAM) technology. ERAM is the heart of the Next Generation Air Transportation System (Next Gen) and the pulse of the National Airspace System, helping to advance our transition from a ground-based system of air traffic control to a satellite-based system of air traffic management.

ERAM is vital to the future of air navigation, providing the foundational platform required for the FAA to enable Next Gen solutions, via modernization programs such as System Wide Information Management (SWIM), Data Communications (Data Comm), and Automatic Dependent Surveillance-Broadcast (ADS-B). ERAM will provide benefits for users and the flying public by increasing air traffic flow. The ESSC provides the foundation for the development, maintenance, and engineering support of the ERAM operational baseline.

• ESSC Engineering/Integration effort consisting of on-site support to all FAA and Leidos user groups for the PMF/STF systems.
• ESSC administration support which includes activities such as creating new user/group IDs and providing system functions such as disk management, cross mounts, add/change file systems, backup/restore coordination, network management and release management.
• Assisting with problem debugging, investigating hardware and software problems, as well as implementing corrective action, answering user questions, providing effective system operations, and assistance to the end user.
• Installation and customization of the operating system images, which includes the necessary CAS software and applications software for the various platforms within the PMF/STF environment.
• User support as required that includes assisting users on a day-to-day basis

• Requires BS degree and 4+ years of prior relevant experience or Masters with 2 years of prior relevant experience.
• Basic hardware knowledge and ability to troubleshoot/repair basic issues (Adapter swaps, adding memory, etc.).
• Redhat Linux administration skills, and ability to troubleshoot
• IBM AIX administration skills, and ability to troubleshoot
• Knowledge of Cisco routers and switches including stack switches

• Tele-communications/networking knowledge
• Net App storage knowledge
• Understanding of VMWare/KVM virtual systems

If you are 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.

January 21, 2026

Pay Range $87,100.00 - $

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 (but are not limited to) 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.

Leidos is an industry and technology leader serving government and commercial customers with smarter, more efficient digital and mission innovations. Headquartered in Reston, Virginia, with 47,000 global employees, Leidos reported annual revenues of approximately $16.7 billion for the fiscal year ended January 3, 2025. For more information, please visit

Pay and benefits are fundamental to any career decision. That s why we craft compensation packages that reflect the importance of the work we do for our customers. Employment benefits include competitive compensation, Health and Wellness programs, Income Protection, Paid Leave and Retirement. More details are available at

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