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# Principal System Administrator- Must have a active secret cleara

- **Company:** RTX
- **Location:** Tucson, AZ, United States
- **Experience:** Experienced
- **Salary:** $86,800.0 - $165,200.0
- **Contract:** Permanent contract
- **Skills:** Microsoft Windows, Active Directory, Backup Devices, CompTIA Security+, Cyber Security, System Configuration, Dynamic Host Configuration Protocol, Linux, RAID, Domain Name System (DNS), VMware ESX Servers, Hardware Design, Identity and Access Management, Windows Servers, MySQL, Red Hat Enterprise Linux, VMware VSphere, Data Storage Management, Data Storage Technologies, Virtual Computing, Information Technology, Vcenter, Hardware Infrastructure, National Industrial Security Program Operating Manual (NISPOM), Vmware
- **Published:** November 6, 2026
- **Apply:** https://www.clearancejobs.com/jobs/9294368/principal-system-administrator-must-have-a-active-secret-cleara

## About the Role

* 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 Secret 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.
 * Must have Windows or Linux experience systems administration experience.
 * Experience in one of the following: Active Directory, VMware, MySQL, networking administration experience.

Qualifications We Prefer:

 * 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 using VMWare vCenter, vSphere, and ESX and/or other virtual computing methods.
 * Experience supporting engineers in software, simulations, and hardware development.

## Description

Principal System Administrators, internally known as Principal Analyst, 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 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