Sr Linux System Administrator

Date Posted:

2026-03-18

Country:

United States of America

Location:

US-CA-EL SEGUNDO-E03 ~ 2004 E El Segundo Blvd ~ BLDG E03

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:

DoD Clearance: Secret

Security Clearance Status:

Active and existing security clearance required on day 1

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. 

What You Will Do:

• The candidate’s day-to-day activities include but are not limited to: Redhat Linux 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.

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.

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

• Active CompTIA Security+ certification or the ability to obtain certification in the first 6 months. 

Qualifications We Prefer:

• Linux OS Certificate ( RHCSA / Linux+ ).

• Experience with RHEL 7/8/9.

• Troubleshooting skills including systemd, firewalld, and SELinux. 

• Experience with High Performance Computing ( HPC ) Environments.

• Experience with NetApp / OnTap tools.

• Experience with Databases including MariaDB, Oracle, and SQL.

• Experience with enterprise logging, monitoring, and alerting systems. 

• Experience with automation tools such as Ansible. 

• Scripting Experience (Bash, Python, Ansible) and Kickstart.

• Experience with CIS/STIG benchmarks and DoD security standards.

• Experience with scanning tools such as Nessus and SCAP.

• Experience with Splunk.

• Experience with Enterprise Active Directory (AD) & LDAP.

• Experience dealing with Managed Anti-Virus (AV) solutions ( ClamAV & SEM ).

• Experience hardening systems using tools like SCAP and following STIGs.

• Experience supporting engineers in software, simulations, and hardware development.

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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!

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.

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.

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