Raytheon Technologies

Sr. Principal Systems Administrator

Raytheon Technologies$118K — $224K *
Aerospace & Defense
5 - 7 years of experience
Job Overview by Ladders

Qualifications

  • University degree or equivalent experience with 5-8 years of relevant experience.
  • Active U.S. citizenship necessary for security clearance eligibility.
  • Proficiency in Red Hat Enterprise Linux, Active Directory, and WSUS.
  • Skilled in server architecture and troubleshooting.
  • Familiarity with virtualization tools like VMware and desktop environments (Windows 10, 11).

Responsibilities

  • Administer IT systems in a mixed RedHat and Windows environment.
  • Coordinate the installation and configuration of Red Hat systems.
  • Engage in software installation phases including testing and documentation.
  • Mentor junior Linux administrators and collaborate with engineering teams.
  • Troubleshoot complex technical issues involving hardware and operating systems.
  • Lead technical meetings representing the organization on functional area matters.
  • Document advanced IT processes and provide necessary training for team members.

Benefits

  • Medical, dental, and vision insurance.
  • Life insurance and short/long-term disability coverage.
  • 401(k) matching contributions.
  • Flexible spending accounts and flexible work schedules.
  • Paid time off and holidays.
  • Employee Scholar Program allowing education reimbursement.
Full Job Description
Date Posted:
2026-06-18
Country:
United States of America
Location:
US-CA-EL SEGUNDO-E04 ~ 2006 E El Segundo Blvd ~ BLDG E04
Position Role Type:
Onsite
U.S. Citizen, U.S. Person, or Immigration Status Requirements:
The ability to obtain and maintain a U.S. government issued security clearance is required. U.S. citizenship is required, as only U.S. citizens are eligible for a security clearance
Security Clearance Type:
DoD Clearance: Secret
Security Clearance Status:
Active and existing security clearance required after day 1

Raytheon currently has an exciting IT position available that supports the Raytheon mission of making the world a safer place. We are currently seeking a Systems Administrator that will be working onsite in a highly collaborative, multi-platform and multi-disciplined environment. The Systems Administrator is required to have an active secret security clearance as they will be responsible for deploying and maintaining classified IT infrastructures. The candidate's day-to-day activities include but are not limited to: Server management; storage management; file server management; access management; data backup; software and license configuration; and workstation support. Each day in the life of a Systems Administrator can bring something new - building a new IT infrastructure for a group of engineers, restoring files due to an outage, updating virus definitions and security patches, teaming with our brilliant engineers on how to improve their processes, and more.

What You Will Do:
  • Provide IT systems administration in a heterogeneous RedHat Enterprise/Microsoft Windows and environment.
  • Lead and coordinate the Red Hat Installation and configuration.
  • Participate in all phases of Engineering software installation and support, with emphasis on testing, documentation, and acceptance phases.
  • Collaborate with teams and mentor junior Linux admins.
  • Apply understanding and knowledge of Windows Server internals or Linux fundamentals to include DNS, DHCP, AD, and server replication methods.
  • Work as a team member in a fast-paced technological environment. Use troubleshooting techniques to resolve technical problems of a moderate to high scope and complexity to include the integration of hardware and operating systems (OS).
  • Participate and lead technical meetings with team members and program personnel representing the organization in functional area matters.
  • Provide documentation and training on advanced IT processes and procedures and other tasks as assigned.
  • Responsible for provisioning, installation/configuration, operation, and maintenance of systems hardware and software related to a Linux/Windows infrastructure for classified programs. Duties include, but are not limited to, server management (software and hardware); storage management (logical and physical); cross platform authentication and access management; data backup and restoration; software and license configuration; and workstation support
  • Work with Cybersecurity professionals to maintain security requirements and provide documentation on advanced IT processes and procedures and other tasks as assigned.
  • Must be able to obtain Department of Defense Directive (DoDD) 8140 / 8570 Certification requirements (CompTIA Security+ CE or equivalent certification) within 6 months of start date.
  • Systems are operational 24x7 and occasionally require work effort beyond standard work hours
  • Full time 100% Onsite position


Qualifications You Must Have:
  • Typically requires a University degree or equivalent experience and a minimum of 8 years of prior relevant experience or an Advanced Degree in a related field and a minimum of 5 years experience.
  • The ability to obtain and maintain a U.S. government issued security clearance is required. U.S. citizenship is required, as only U.S. citizens are eligible for a security clearance.
  • Experience with some of, but not limited to, the following technologies: Red Hat Enterprise Linux, Active Directory, WSUS, VMware, prior systems administration experience.
  • Experience with Server architectures and troubleshooting methods and ability to assist in developing solutions and documentation to a variety of technical problems
  • Experience using VMWare vCenter, vSphere, Linux Desktops, Windows desktops (Windows 10, 11), Splunk and ESX and/or other virtual computing methods


Qualifications We Prefer:
  • Active DoD T/S clearance, or the ability to obtain one.
  • Department of Defense Directive (DoDD) 8140 / 8570 Certification requirements (CompTIA Security+ CE or equivalent certification) and an Operating System Certification.
  • Experience with NISPOM, JAFAN, JSIG, DFARS and/or DoD/RMF.
  • Experience with data storage, NAS, and SAN technologies and solutions.
  • Experience supporting engineers in software, simulations, and hardware development.
  • Experience with Microsoft WSUS, SCCM, and/or Exchange
  • High Performance Computing (HPC) experience in a Linux environment.
  • Scripting/ Automation experience.


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.

Learn More & Apply Now!

ulations.

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 118,300 USD - 224,900 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.

About Raytheon Technologies

Raytheon Solipsys, a wholly-owned subsidiary of the Raytheon Company, is an industry leader in the development of integrated Command and Control (C2) Network-Centric solutions for the Domestic and International DoD and Homeland Security. Through proven systems and software engineering practices, built on the invention and application of innovative technologies, they deliver the C2 infrastructure necessary to effectively control security/military forces in any environment. Their reliable solutions assure information superiority, increased shared awareness, deep sensor reach, aircraft control, air defense, disaster management, and time-critical decision making.

Raytheon Technologies Careers

Join the innovative world of Raytheon Technologies, a leader in aerospace and defense, where we offer unparalleled job opportunities in an environment that champions diversity, leadership, and professional growth.

Work You’ll Do

At Raytheon Technologies, you’ll be part of a company that values innovation and leadership. Our team is dedicated to solving some of the most complex challenges in aerospace and defense, making significant impacts worldwide. With a culture that fosters diversity and inclusion, you will collaborate with some of the brightest minds in the industry.

Transform Your Career

Step into a role that harnesses your skills and propels your career to new heights. Raytheon Technologies is not just about thinking big but making those big ideas happen. We provide robust career development opportunities that include comprehensive training and development programs, leadership workshops, and continuous learning through our internal platforms.

Innovate and Lead

Join our team of over 60,000 professionals globally, who are not only experts in their fields but are also driven by a passion for innovation and excellence. At Raytheon Technologies, you are positioned at the forefront of the industry, where your work directly contributes to groundbreaking advancements in technology and defense.

Internship and Employment Opportunities

Whether you’re starting your career or looking to advance, Raytheon Technologies offers a range of employment and internship opportunities that can help you achieve your professional goals. Our internships provide a solid foundation of skills and experiences, while our full-time positions offer a path to personal and professional growth within the company.

Benefits and Culture

Our employees enjoy a competitive package of benefits and rewards that reflect their invaluable role in our company. From health and wellness programs to performance bonuses and flexible working conditions, we ensure our team members are well taken care of.

Networking and Professional Development

At Raytheon Technologies, networking and professional development are part of our DNA. We encourage our employees to engage in internal and external networking events, leadership training, and diversity initiatives that enhance their career journey.

Join Our Team

Explore the numerous positions available that match your skills and interests. We are looking for passionate, curious, and solution-driven team players who are ready to take their career to the next level.

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Prepare for Your Future

Ready to apply? Enhance your resume and prepare for your interview with our comprehensive support tools and resources. Discover the exciting and rewarding career opportunities that await at Raytheon Technologies.

SEARCH RAYTHEON TECHNOLOGIES JOBS

Join us in our mission to create a safer future and be a part of a team that values integrity, excellence, and teamwork. At Raytheon Technologies, your career is just the beginning of a lifelong journey of professional and personal growth.
Learn more about Raytheon Technologies
Size
14,771 employees
Market Cap
$32,494
Industry
Founded
1922
NASDAQ

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