Senior Principal System Administrator (ONSITE)

Raytheon; Tucson (AZ); On-site; USD 108,000 - 205,000; Full time

Benefits offered by this job

Relocation assistance

Benefits package

Job summary

Raytheon is seeking an IT Systems Administrator to provide cross-platform system administration across Windows and Red Hat Linux, ensuring uptime in a fast-paced environment onsite in Tucson, AZ.

The role requires active Secret clearance, and the team collaborates with Cybersecurity to maintain security requirements; occasional after-hours work and up to 10% travel are expected. RTX offers comprehensive benefits and opportunities for professional certification and relocation assistance.

Qualifications

• Active Secret security clearance required prior to start.
• Bachelor's degree or equivalent experience, or Advanced Degree with related experience.
• Experience with Windows and Linux Operating systems.
• Experience with helpdesk operations and ticket resolution.
• Experience with system hardening and secure configurations.
• Experience working in a team environment.

Responsibilities

• Provide IT systems administration in Windows and Red Hat Linux environments.
• Understand Windows Server internals or Linux fundamentals, including DNS, DHCP, AD, and replication.
• Work as a team member in a fast-paced technological environment.
• Use troubleshooting techniques to resolve technical problems of a moderate to high scope, including hardware and OS integration.
• Work with Cybersecurity professionals to maintain security requirements.
• Provide documentation and training on advanced IT processes and procedures and other tasks as assigned.
• Must be able to obtain certification requirements (CompTIA Security+ CE or equivalent) within a reasonable amount of time.
• Systems are operational 24x7 and occasionally require work beyond standard hours.
• Travel required as business needs dictate to other US Domestic locations, up to 10% per year.

Skills

Windows

Linux

Helpdesk operations

System hardening

Team collaboration

Education

Bachelor's degree or equivalent experience

Advanced degree in related field

Tools

VMware ESXi

vCenter

ACAS

SCAP

Splunk

STIG Viewer

Job description

Location

US-AZ-TUCSON-801 ~ 1151 E Hermans Rd ~ BLDG 801 (External Site)

Date Posted

2026-09-11

Country

United States of America

Location

US-AZ-TUCSON-801 ~ 1151 E Hermans Rd ~ BLDG 801 (External Site)

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 RTX, the world's largest aerospace and defense company, 185,000 great minds are united by purpose and inspired to make a difference solving the world’s most complex problems. With our three market leading businesses, world-class operations and investments in research and development, we offer capabilities and opportunity no one else can. Together, we push the boundaries of known science and find new ways to connect and protect our world.

Raytheon brings 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. We deliver solutions that help our nation and allies defend freedoms and deter aggression, creating a safer, more secure world. Join us and help shape the future of aerospace and defense.

What You Will Do

• Provide IT systems administration in a heterogeneous Microsoft Windows and Redhat Enterprise Linux environment.
• 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).
• Work with Cybersecurity professionals to maintain security requirements.
• Provide documentation and training on advanced IT processes and procedures and other tasks as assigned.
• Must be able to obtain certification requirements (CompTIA Security+ CE or equivalent certification) within a reasonable amount of time
• Systems are operational 24x7 and occasionally require work effort beyond standard work hours.
• Travel required as business needs dictate to other US Domestic locations, up to 10% per year.

Qualifications You Must Have

• 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. citizenship are eligible for a security clearance
• 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
• Experience with Windows and Linux Operating systems.
• Experience with helpdesk operations, ticket troubleshooting and resolution.
• Experience with system hardening.
• Experience with working in a team environment and collaborating with others.

Qualifications We Prefer

• Experience serving as a technical SME or primary point of contact for patching, vulnerability remediation, or compliance initiatives.
• Experience with VMware virtualization technologies, including ESXi, vCenter, VM lifecycle management, and host upgrades.
• Experience with securing system configurations, system hardening, STIG/EVAL STIG implementation, vulnerability remediation, and compliance.
• Familiarity with cybersecurity and compliance tooling, such as ACAS, SCAP, Splunk, STIG Viewer, and audit support processes.
• Experience with enterprise Windows services, including Active Directory, Group Policy, and identity integration.
• Experience working in a classified environment.

What We Offer

• Our values drive our decisions. Our values include safety, trust, respect, accountability, collaboration, and innovation. Relocation assistance is available.
• Relocation assistance is available, provided final candidate meets eligibility requirements.

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 107,500 USD - 204,500 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.