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# Principal Systems Administrator (Onsite)

- **Company:** RTX
- **Location:** White Sands, NM, United States
- **Experience:** Experienced
- **Salary:** $86,800.0 - $165,200.0
- **Contract:** Permanent contract
- **Skills:** Active Directory, Bash Shell, CompTIA Security+, Cyber Security, Computer Programming, Digital Technology, Hardware Design, Information Technology Operations, Python (Programming Language), Linux System Administration, NetApp Applications, Network Administration, Windows PowerShell, Red Hat Enterprise Linux, Scripting, Information Technology, National Industrial Security Program Operating Manual (NISPOM), Vmware
- **Published:** October 2, 2026
- **Apply:** https://www.clearancejobs.com/jobs/9211601/principal-systems-administrator-onsite

## About the Role

* Typically requires a University Degree or equivalent experience and minimum 5 years prior relevant experience, or an Advanced Degree in a related field and minimum 3 years' experience.
 * Active and transferable U.S. government issued Secret security clearance is required prior to start. U.S. citizenship is required, as only U.S. citizens are eligible for a security clearance.
 * Experience administering Microsoft Windows environments.
 * Experience administering Linux environments.
 * Experience with operating system concepts and implementations., * Experience with any of the following technologies: Active Directory, VMware, Network administration, NetApp administration.
 * Scripting/coding proficiency (Python/PowerShell/Bash)
 * Experience supporting engineers in software, simulations, and hardware development.
 * Experience working with NISPOM, JAFAN, JSIG, and/or DoD/RMF guidelines.
 * Strong communication skills, with ability to influence and drive change with peers and leaders across the organization.

## Description

* Manage and optimize Microsoft Windows and Red Hat Enterprise Linux infrastructure, ensuring reliable and secure IT operations.
 * Act as a senior technical resource for the team to maintain confidentiality, integrity, and availability of assigned IT systems and applications.
 * Collaborate across Digital Technology, Engineering, Cybersecurity, Networking, Storage, and Tools teams to resolve complex infrastructure, integration, and compliance challenges, while operating independently with minimal oversight.
 * Partner with Cybersecurity teams to maintain compliance with security requirements and provide documentation, training, and guidance on advanced IT processes and procedures.
 * Lead and contribute to technical meetings with internal teams and program stakeholders, providing technical guidance and best practice to ensure successful outcomes.
 * Develop, document, and enforce system administration processes, standards, and best practices.
 * Participate in Change Request reviews and serve on Change Management Boards at various program levels.
 * Obtain Department of Defense Directive (DoDD) 8140 / 8570 Certification requirements (CompTIA Security+ CE or equivalent) within reasonable amount of time
 * Systems are operational 24x7 and occasionally require work effort beyond standard work hours.
 * Travel to other US Domestic locations may be required as business needs dictate. Up to 20% per year.
 * 100% Onsite presence in White Sands Missile Range, NM.


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