Principal System Administrator

Principal System Administrator

Raytheon invites interested candidates to apply for this Principal System Administrator position located in Tucson, AZ. The role is on‑site and requires U.S. citizenship and a Secret security clearance. Applicants must be eligible for a DoD Directive (DoDD) 8140 / 8570 certification, with a CompTIA Security+ CE or equivalent within 6 months.

Posted on: 2025‑12‑29.

Employment Type:

Full‑time, Onsite. Travel: up to 5%.

Location:

AZ805: RMS AP Bldg 805 1151 East Hermans Road Building 805, Tucson, AZ 85756, USA.

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.

• Provide IT systems administration in a heterogeneous Microsoft Windows and Red Hat Enterprise Linux environment.
• 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 for 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.

• 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 security clearance prior to start date. U.S. citizenship is required, as only U.S. citizens are eligible for a security clearance.
• Must have Windows or Linux experience systems administration experience.
• Experience in one of the following:
  Active Directory, VMware, MySQL, networking administration experience.

• VMware highly desired.
• 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.

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.

Salary range: 82,000 USD – 164,000 USD.

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 work…