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Principal Linux & Windows Administrator- Must have a TSSCI active clearance

RTX


Job Location:

El Segundo, CA - USA

Yearly Salary: USD 95500 - 181700
Posted: 5 September 2026 (16 hours ago)
Application Deadline: 3 December 2026
Vacancies: 1 Vacancy

Job Summary

Date Posted:

Country:

United States of America

Location:

US-CA-EL SEGUNDO-E01 2000 E El Segundo Blvd BLDG E01

Position Role Type:

Onsite

U.S. Citizen U.S. Person or Immigration Status Requirements:

Active and transferable U.S. government issued security clearance is required prior to start date. U.S. citizenship is required as only U.S. citizens are eligible for a security clearance

Security Clearance Type:

TS/SCI - Current

Security Clearance Status:

Active and existing security clearance required on day 1

At RTX the worlds largest aerospace and defense company 185000 great minds are united by purpose and inspired to make a difference solving the worlds most complex problems. With our three market leading businesses world-class operations and investments in research and development we offer capabilities and opportunity no one else can. Together we push the boundaries of known science and find new ways to connect and protect our world.

Raytheon brings the strength of more than 100 years of experience and renowned engineering expertise to meet the needs of todays mission and stay ahead of tomorrows threat. We deliver solutions that help our nation and allies defend freedom and deter aggression creating a safer more secure world. Join us and help shape the future of aerospace and defense.

Principal Linux & Windows System Administrators based in El Segundo CA infrastructureWorkplaceServicescollaboratewith manyteams tosupportexciting critical programs with classified information system this role means you candevelop implement and maintain secure cost-efficientenvironmentsacross various classified programs. Program teams rely on yourcollaborationand guidance to define computing requirements andcreateend-to-endsolutionstosolvecomplexIT infrastructure problems.

What You Will Do:

  • Provide IT systems administration in a heterogeneous Microsoft Windows and RedhatEnterpriseLinux environment.
  • Collaborate in a fast-paced environment using troubleshooting skills to resolve complex technical issues including hardware and OS integration while adapting to evolving challenges as part of a team.
  • Working with Cybersecurity professionals to maintain security requirements and provide documentation and training on advanced IT processes and procedures and other tasks as assigned.
  • Developsolutionsand documentation about a variety of technical problems.
  • Must be able to obtain Department of Defense Directive (DoDD) 8140 / 8570 Certification requirements (CompTIA Security or equivalent certification)
  • Participate in team collaboration Manage virtualized environments
  • Full-time 100% Onsite position


Qualifications You Must Have:

  • Typically requires a bachelors degree and minimum of 5yearsof prior relevant experience or amasters degree and minimum of 3yearsof prior relevant experience
  • Must have an active and transferable U.S. government issued TS/SCI clearance prior to start date. U.S. citizenship isrequired as only U.S. citizens are eligible for a security clearance.
  • Experience systems administration in a heterogeneous Microsoft Windows and RedHatEnterpriseLinuxenvironment.
  • Experience with RHEL Server setup RHEL system security management perform data backup and restore.
  • Experience Windows Desktop Operating System (OS) and Windows Server OS
  • Experience with Net App


Qualifications We Prefer:

  • Experience with data storage NAS and SAN technologies and solutions.
  • Familiarity with Ansible and system automation
  • Experience with Linux and Windows Operating Systems.
  • Experience with VMware administration including ESXi hypervisors and VSphere management interface.
  • Microsoft Windows Active Directory Services administration and support (e.g. user and computer objects administration Group Policy).
  • Experience with supporting desktop / workstation hardware.
  • Experience with backup technologies such as tape libraries and backup software (NetBackup or the like).
  • Experience with an IT incident/service request system.


What We Offer:

Our values drive our actions behaviors and performance with a vision for a safer more connected world. At RTX we value: Trust Respect Accountability Collaboration and Innovation.

Relocation Eligibility

As part of our commitment to maintaining a secure hiring process candidates may be asked to attendselect steps of the interview process in-person at one of our office locations regardless of whether the role is designated as on-site hybrid or remote.

The salary range for this role is 95500 USD - 181700 USD. The salary range provided is a good faith estimate representative of all experience levels. RTX considers several factors when extending an offer including but not limited to the role function and associated responsibilities a candidates work experience location education/training and key skills.

Hired applicants may be eligible for benefits including but not limited to medical dental vision life insurance short-term disability long-term disability 401(k) match flexible spending accounts flexible work schedules employee assistance program Employee Scholar Program parental leave paid time off and holidays. Specific benefits are dependent upon the specific business unit as well as whether or not the position is covered by a collective-bargaining agreement.

Hired applicants may be eligible for annual short-term and/or long-term incentive compensation programs depending on the level of the position and whether or not it is covered by a collective-bargaining agreement. Payments under these annual programs are not guaranteed and are dependent upon a variety of factors including but not limited to individual performance business unit performance and/or the companys performance.

This role is a U.S.-based role. If the successful candidate resides in a U.S. territory the appropriate pay structure and benefits will apply.

RTX anticipates the application window closing approximately 40 days from the date the notice was posted. However factors such as candidate flow and business necessity may require RTX to shorten or extend the application window.

RTX is an Equal Opportunity Employer. All qualified applicants will receive consideration for employment without regard to race color religion sex sexual orientation gender identity national origin age disability or veteran status or any other applicable state or federal protected class. RTX provides affirmative action in employment for qualified Individuals with a Disability and Protected Veterans in compliance with Section 503 of the Rehabilitation Act and the Vietnam Era Veterans Readjustment Assistance Act.

Privacy Policy and Terms:

Click on this link to read the Policy and Terms


Required Experience:

Staff IC


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