Principal Systems Administrator- active secret clearance

Principal System Administrator – Based in Tucson, AZ

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.

• Provide IT systems administration in a heterogeneous Microsoft Windows and Redhat Enterprise Linux environment.
• Lead and coordinate the Red Hat installation and configuration.
• Provision, install/configure, operate, and maintain systems hardware and software related to a Linux/Windows infrastructure for classified programs, including server management, storage management, cross‑platform authentication and access management, data backup and restoration, software and license configuration, and workstation support.
• Apply knowledge of Windows Server internals or Linux fundamentals, including DNS, DHCP, AD, and server replication methods.
• Work as a team member in a fast‑paced technological environment, using troubleshooting techniques to resolve technical problems of moderate to high scope and complexity, including hardware and OS integration.
• Understand data RAID, backup uses and technologies, and install and configure software applications requested by end users.
• Collaborate with cybersecurity professionals to maintain security requirements and provide documentation and training on advanced IT processes and procedures.
• Obtain Department of Defense Directive (DoDD) 8140 / 8570 certification requirements (CompTIA Security+ CE or equivalent certification).
• Develop solutions and documentation to address a variety of technical problems.
• Maintain systems operational 24x7, with occasional work beyond standard hours.
• Travel up to 5%.
• Workfull time, 100% onsite.

• Typically requires a bachelor’s degree and minimum of 5 years of relevant experience, or a master’s degree and minimum of 3 years of relevant experience.
• Must have an active transferable U.S. government‑issued Secret clearance prior to start; U.S. citizenship is required.
• Must have Linux and Windows experience.
• Experience in one of the following:
  Active Directory, VMware, MySQL, networking administration.

• 5 years of full‑time Linux experience.
• An active DoD TS clearance.
• Department of Defense Directive (DoDD) 8140 / 8570 certification (CompTIA Security+ CE or equivalent and an Operating System certification).
• Experience with NISPOM, JAFAN, JSIG, DFARS, and/or DoD/RMF.
• In‑depth experience in Windows Server.
• Experience with data storage, NAS, and SAN technologies and solutions.
• Experience with IT project lifecycle management processes.
• Experience using VMWare vCenter, vSphere, 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.

• The salary range for this role is 86,800 USD – 165,200 USD.
• Hired applicants may be eligible for benefits, including 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 depend on the business unit and labor agreement.
• Hired applicants may be eligible for annual short‑term and/or long‑term incentive compensation programs.
• This is a U.S.
  
  -based role; if the successful candidate resides in a U.S. territory, the appropriate pay structure and benefits apply.

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.

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.