Principal Linux Systems Administrator

Date Posted:

2025-09-04

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:

TS/SCI with CI Poly - 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.

Principal System Administrators collaborate with teams to support exciting, 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 Redhat Enterprise Linux and Microsoft Windows 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

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 TS/SCI CI Poly security clearance or prior SCI/program eligibility prior to start date. U.S. citizenship is required, as only U.S. citizens are eligible for a security clearance.
• Must have experience with Linux systems administration
• Experience with one of the following: Solaris, Windows, VMWare
• Experience with containerization: Docker, Kubernetes, OpenShift, VMware Tanzu or similar.

Qualifications We Prefer:

• Experience with Ansible.
• Experience Unix/Solaris 11.
• VMware expertise 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.
• Experience with data storage, NAS, and SAN technologies and solutions. Specifically Net App.

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:

Learn More & Apply Now!

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 li