Demo

Principal Windows Systems Administrator

Lensa
El Segundo, CA Full Time
POSTED ON 12/18/2025
AVAILABLE BEFORE 1/16/2026
Lensa is a career site that helps job seekers find great jobs in the US. We are not a staffing firm or agency. Lensa does not hire directly for these jobs, but promotes jobs on LinkedIn on behalf of its direct clients, recruitment ad agencies, and marketing partners. Lensa partners with DirectEmployers to promote this job for RTX. Clicking "Apply Now" or "Read more" on Lensa redirects you to the job board/employer site. Any information collected there is subject to their terms and privacy notice.

Date Posted

2025-11-18

Country

United States of America

Location:

CA220: 2202 E El Segundo Blvd BldgE02 2002 East El Segundo Boulevard Building E02, El Segundo, CA, 90245 USA

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

Top Secret - Current

At Raytheon, the foundation of everything we do is rooted in our values and a higher calling – to help our nation and allies defend freedoms and deter aggression. We bring the strength of more than 100 years of experience and renowned engineering expertise to meet the needs of today’s mission and stay ahead of tomorrow’s threat. Our team solves tough, meaningful problems that create a safer, more secure world.

Principal System Administrator in infrastructure Workplace Services, collaborates with many teams to support fast-paced, critical programs with classified information system capabilities. Success in this role means you can develop, implement and maintain secure, cost-efficient environments across various classified programs. Program teams rely on your collaboration and guidance to define computing requirements and create end-to-end solutions to solve complex IT infrastructure problems.

What You Will Do

  • Provide IT systems administration in a heterogeneous Microsoft Windows and Redhat Enterprise Linux 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.
  • Develop solutions and 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) within 6 months of start date
  • Full time 100% Onsite position in El Segundo, CA location

Qualifications You Must Have

  • Typically requires a bachelor’s degree and a minimum of 5 years of prior relevant experience or a master’s degree and minimum of 3 years of prior relevant experience.
  • Must have an active a transferable U.S. government issued DoD Top Secret security clearance prior to start date. U.S. citizenship is required, as only U.S. citizens are eligible for a security clearance.
  • Must have experience with Microsoft Windows administration
  • Experience with one of the following: Windows, VMWare
  • Experience with DHCP, Group Policy, DNS, Active Directory, File Shares, WSUS, Scripting, Backups

Qualifications We Prefer

  • Experience with integration and supporting a email platform such as Exchange or SmarterMail.
  • Experience with Windows 11, 10 Windows Server 2022, 2019, 2016.
  • Experience with Veritas Netbackup, BackupExec or closely related software
  • Experience with data storage, NAS, and SAN technologies and solutions. Specifically Net App.
  • Configuration and support of Fabric Cisco or Brocade Switches
  • Minimal Linux expertise desired
  • Familiarity with Splunk, Nessus, Symantec, SCCM highly desired
  • VMware expertise highly desired.
  • Experienced mentoring individuals and teams.
  • Department of Defense Directive (DoD) 8140 / 8570 Certification requirements (CompTIA Security CE or equivalent certification) and an Operating System Certification. Ability to obtain 3 months.
  • Direct working experience with NISPOM, JAFAN, JSIG, DFARS and/or DoD/RMF.

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.

As part of our commitment to maintaining a secure hiring process, candidates may be asked to attend select 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 90,000 USD - 182,000 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 candidate’s 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 company’s 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 (http://www.rtx.com/privacy/Job-Applicant-Privacy-Notice) to read the Policy and Terms

Raytheon Technologies is An Equal Opportunity/Affirmative Action Employer. All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, sexual orientation, gender identity, national origin, disability or veteran status, age or any other federally protected class.

If you have questions about this posting, please contact support@lensa.com

Salary : $90,000 - $182,000

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