Sr Linux System Administrator
Company: RTX
Location: El Segundo
Posted on: April 1, 2026
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Job Description:
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. ?
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. Privacy Policy and Terms:
Click on this link to read the Policy and Terms
Keywords: RTX, Hacienda Heights , Sr Linux System Administrator, IT / Software / Systems , El Segundo, California
