Senior Systems Administrator

Raytheon; Tucson (AZ); On-site; USD 69,000 - 131,000; Full time

Job summary

Raytheon is seeking a Senior System Administrator based in Tucson, AZ to support secure IT infrastructure for classified programs. The role requires a transferble Secret clearance and US citizenship.

You will administer a mixed Windows and Linux environment, lead Red Hat installations, and ensure secure, reliable systems across 24x7 operations. Responsibilities include server/hardware provisioning, storage and access management, and collaboration with Cybersecurity to meet security requirements.

Qualifications

• Typically requires a bachelor’s degree and minimum of 2 years of prior relevant experience.
• Must have an active transferable U.S. government issued secret clearance prior to start date.
• U.S. citizenship is required for security clearance eligibility.
• Must have Linux experience.
• Experience in Active Directory, VMware, MySQL, or networking administration.

Responsibilities

• Provide IT systems administration in a heterogeneous Windows and Red Hat Linux environment.
• Lead and coordinate the Red Hat installation and configuration.
• Provision, install, configure, operate, and maintain systems for classified programs.
• Manage server hardware/software, storage, authentication, backups, and licenses.
• Understand Windows Server or Linux fundamentals including DNS, DHCP, AD, and replication.
• Collaborate in a fast-paced team to resolve moderate-to-high complexity problems.
• Work with cybersecurity to maintain security requirements and document processes.
• Travel up to 5% and be onsite full-time in Tucson, AZ.

Education

Bachelor's degree

Tools

VMware vCenter

vSphere

ESX

Windows Server

Job description

Date Posted

2026-08-13

Country

United States of America

Location

US-AZ-TUCSON-928 ~ 1151 E Hermans Rd ~ MULTI PURPOSE FAC 928

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.

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.

Senior 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) .
• 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 2 years of prior relevant experience
• Must have a active 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 Linux experience
• Experience in one of the following: Active Directory, VMware, MySQL, networking administration experience.

Qualifications We Prefer

• Linux SME
• An active DoD TS
• 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 68,900 USD - 131,100 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.

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