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Systems Administrator (Windows/Linux)

ExpansiaOperations & Admin
Salary
$75K–$100K
USD per year
Hiring from
United States
Work type
Remote
Posted
Sep 25, 2026
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Start Date: Immediate
JHNA, CTSi, and EXPANSIA have come together to form a Defense Technology platform named Aether Aerospace focused on delivering high-impact technologies, technology-enabled services and advanced manufacturing solutions to the U.S. Department of Defense and related national security customers. Backed by Falfurrias Management Partners, the platform brings together deep domain expertise across Army, Navy, and Air Force and Space Force programs, digital engineering, systems integration, and specialized manufacturing capabilities.
The combined organization operates as a multi-entity aerospace and defense technology and tech-enabled services and manufacturing enterprise positioned for scalable growth, operational excellence, and long-term value creation.
OVERVIEW
Full-time/Permanent Employee
Location: Pax River, MD

Aether Aerospace is seeking a Systems Administrator to support a major NAVAIR program office in Patuxent River, MD. Candidate will provide analysis and high-level support as the senior member of a major program office Foreign Disclosure team. Candidate will be responsible for reviewing and documenting the release of information to international participants and providing mentorship and Senior-level review to the Foreign Disclosure team.

RESPONSIBILITIES

  • Provide engineering solutions for various and unique problem sets and customers in a government software hosting facility.
  • Deploy and maintain physical and virtual hardware infrastructure, to include virtual machines and containers.
  • Perform routine maintenance and configuration changes to various physical and virtual hosts.
  • Installation, configuration and troubleshooting of hardware and software issues on servers, workstations, and IT equipment.
  • Maintain system backups and disaster recovery plans.
  • Manage user accounts and permissions.
  • Deploy and maintain software applications.
  • Troubleshoot technical issues.
  • Maintain documentation to include knowledge base, incident response actions, system configurations, and other information related to system administration.
  • Provide technical support to customers, ranging from resolving technical issues to providing guidance and best-practices.
  • Secure information systems and applications to current DoD guidance
  • Maintain configuration and security posture of information systems through continuous monitoring and routine security events/reporting.
  • Participate in project planning using Agile methodology.
  • Provide networking support to on-premises infrastructure.
  • Understanding and familiarity of Linux operating system and virtual networking.

    • KEY QUALIFICATIONS

    Clearance: Active Secret clearance with ability to obtain Top Secret clearance
    Education and Years of Experience: Candidate must have a minimum of 5 years of Systems Administration Experience
  • Risk Management Framework (RMF) compliance experience a must (example: scanning and Security Technical Implementation Guide (STIG) execution)
  • CompTIA Sec+
  • Windows or Linux OS certification
  • VMWare, Virtual Networking, System Backups, Networking, Containers, and Active Directory experience
    • Aether Aerospace is an Equal Opportunity Employer. All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, pregnancy, sexual orientation, age, national origin, disability, status as a protected veteran, or any other protected characteristic.

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