Principal System Administrator (2nd shift) Tucson, AZ. Must have an active secret clearance we [...]

Raytheon; Tucson (AZ); On-site; USD 87,000 - 165,000; Full time

Benefits offered by this job

Medical, dental, vision

401(k) match

Flexible schedules

Paid time off

Job summary

RTX is seeking a Principal System Administrator to support classified environments in Tucson, AZ. The role involves Windows and Red Hat Linux administration, security compliance with DoD directives, and hands-on data and software management for critical programs. You will work with cybersecurity teams and may travel domestically up to 10%.

The position is full-time, onsite, with a 2nd shift and a shift differential. A DoD clearance is required on day one and U.S. citizenship is mandatory.

Qualifications

• This role requires active and transferable Secret U.S. government clearance before start date.
• Candidate must hold U.S. citizenship for security clearance eligibility.
• Experience with Windows Server or Linux administration and related services.

Responsibilities

• Provide IT systems administration in a Windows and RHEL environment.
• Manage DNS, DHCP, AD, and server replication methods.
• Troubleshoot moderate to high complexity IT issues with hardware and OS.
• Configure software applications requested by end users and back up data.
• Work with Cybersecurity to maintain security requirements.
• Document and train on advanced IT processes and procedures.
• Travel up to 10% domestically as needed.
• Operate in a 24x7 production environment with potential after-hours work.

Skills

Security clearance

Windows/Linux

System administration

Education

Bachelor’s degree in a related field

Master’s degree

Tools

VMware

MECM

WSUS

Exchange

Job description

Date Posted: 2026-08-19

Country: United States of America

Location: US-AZ-TUCSON-848 ~ 1151 E Hermans Rd ~ BLDG 848

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.

Principal System Administrator, based in Tucson, AZ

Internally known as Principal Analyst, Information Workplace Services 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.

This position is for 2nd shift and the hours will be 2:00pm to 11:00pm and during this shift, you will also receive an 8% shift differential.

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 moderate to high scope and complexity to include the integration of hardware and operating systems (OS).
• Understanding of data RAID, data backup uses and technologies. Install and configure software applications requested by end users.
• 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 Department of Defense Directive (DoDD) 8140 / 8570 Certification requirements (CompTIA Security+ CE or equivalent certification) within 6 months of start date.
• 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.
• This position supports a manufacturing effort that requires the ability to operate in a challenging and dynamic environment where successful quality execution is a key contributor to overall success
• This position is for 2nd shift and the hours will be 2:00pm to 11:00pm and during this shift, you will also receive a 8% shift differential.
• Full time 100% Onsite position.

Qualifications You Must Have

• Typically requires 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 Secret U.S. government issued security clearance is required prior to start date. Must be able to get access to the program after start. U.S. citizenship is required, as only U.S. citizens are eligible for a security clearance.
• Must have Window or Linux experience
• Experience in one of the following: Linux/RHEL administration, Active Directory and Windows Domain administration, MECM, VMware, and recovery enterprise suites.

Qualifications We Prefer

• 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
• 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, MECM, and/or Exchange
• Scripting Experience

What do we offer

Our values drive our actions, behaviors, and performance with a vision for a safer, more connected world. At RTX we value: Safety, Trust, Respect, Accountability, Collaboration, and Innovation.

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.