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Principal System Administrator Security Clearance

Job in McKinney, Collin County, Texas, 75069, USA
Listing for: RTX
Full Time position
Listed on 2026-01-09
Job specializations:
  • IT/Tech
    Cybersecurity, Systems Administrator, IT Support, Systems Engineer
Job Description & How to Apply Below
Position: Principal System Administrator with Security Clearance
Date Posted:

Country:
United States of America

Location:

TX190: 2501 West University, McKinney 2501 West University , McKinney, TX, 75070 USA
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:
Secret - Current 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. Our Digital Technology (DT) organization ensures that Raytheon teammates across the globe can communicate, collaborate and innovate for customer success. We create leading-edge technology solutions to prevent security threats, protect the integrity of our systems and support RTX's IT infrastructure around the world. Principal System Administrators, internally known as Principal Analyst, infrastructure Workplace Services, collaborate with many teams to support fast-paced, 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.
* 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.

* Systems are operational 24x7 and occasionally require work effort beyond standard work hours

* Travel up to 10%

* 100% onsite in McKinney, TX location Qualifications You Must Have:
* Typically requires bachelor's degree and 5+ years of direct system experience or a master's degree and 3 years of directly related experience

* Must have a 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 Window and Linux experience

* Experience in one of the following:
Active Directory, VMware, networking administration experience. Qualifications We Prefer:
* An active DoD Secret clearance
* Department of Defense Directive (DoDD) 8140 / 8570 Certification requirements (CompTIA Security+ CE or equivalent certification and an Operating System Certification
* Direct working 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, SCCM, and/or Exchange

* High Performance Computing (HPC) experience in a Linux environment
* Scripting Experience Relocation eligible .

What 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. Whether you're just starting out on your career journey or are an experienced professional, we offer a robust total rewards package with compensation; healthcare, wellness, retirement and work/life benefits; career development and recognition programs. Some of the benefits we offer include parental (including paternal) leave, flexible work schedules, achievement awards, educational assistance and child/adult backup care.

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…
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