Principal System Administrator
Company: RTX
Location: Tucson
Posted on: April 1, 2026
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Job Description:
Date Posted: 2026-03-12 Country: United States of America
Location: US-AZ-TUCSON-805 ~ 1151 E Hermans Rd ~ BLDG 805 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: Secret - Current
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 is YOUR
Mission? Empowering a global business. Providing affordable
solutions. Delivering competitive discriminators by unleashing deep
expertise. These are just some of the many ways the Digital
Technology team at Raytheon creates success for our customers.
Joining our team will allow you to collaborate with Raytheon
organizations to enable business growth, speed, and agility through
business innovation, technical proficiency, and operational
excellence. Our Digital Technology (DT ) organization ensures that
Raytheon teammates across the globe are able to communicate,
collaborate and innovate for customer success. We create
leading-edge technology solutions to prevent security threats,
secure the integrity of our systems and support IT infrastructures
around the world. Principal Linux System Administrators , based in
Tucson, AZ, infrastructure Workplace Services, collaborate with
many 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 Microsoft Windows and Redhat Enterprise Linux
environment. Lead and coordinate the Red Hat Installation and
configuration. 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 Understanding and knowledge of Windows
Server internals or Linux fundamentals to include DNS, DHCP, AD,
and server replication methods. Working 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). Understanding data RAID, data backup uses
and technologies. Install and configure software applications
requested by end users. Work with Cybersecurity professionals to
maintain security requirements and provide documentation and
training 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. Must be
able to develop solutions and documentation to deal with a variety
of technical problems. Systems are operational 24x7 and
occasionally require work effort beyond standard work hours. Travel
required up to 5% Full time 100% Onsite position Qualifications You
Must Have: Typically requires a bachelor’s degree and 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 and
transferable U.S. government issued secret clearance prior to start
date. U.S. citizenship is required, as only U.S. citizens are
eligible for a security clearance. Must have Red Hat Enterprise
Linux experience Experience in one of the following: Active
Directory, VMware, MySQL, networking administration experience.
Qualifications We Prefer: Windows experience VMware highly desired
An active DoD TS/SCI 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 In-depth working
experience in Windows Server Experience with data storage, NAS, and
SAN technologies and solutions Experience with using Information
Technology project lifecycle management processes. Experience using
VMWare vCenter, vSphere, and ESX and/or other virtual computing
methods. Experience supporting engineers in software, simulations,
and hardware development. Experience with Microsoft WSUS, SMECP,
and/or Exchange High Performance Computing (HPC) experience in a
Linux environment Scripting 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. Relocation
Eligibility 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 86,800 USD - 165,200 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, Mesa , Principal System Administrator, IT / Software / Systems , Tucson, Arizona
