Principal Systems Administrator

Principal System Administrators

Principal System Administrators, based in Tucson, AZ, internally known as Principal Analyst, infrastructure Workplace Services, collaborates with 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.

Secret – Current. Active and existing security clearance required on day 1.

• Provide IT systems administration in a heterogeneous Microsoft Windows and Red Hat 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 moderate to high scope and complexity to include the integration of hardware and operating systems (OS).
• Experience 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 is required to other US Domestic locations as business needs dictate. Frequency at 5%.
• 100% onsite.

• Typically requires 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 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.
• Experience in one of the following:
  Linux/RHEL administration, Active Directory and Windows Domain administration, MECM, VMware, and recovery enterprise suites.
• Mentoring experience required.

• Strong leadership, teamwork, communication (written and oral), collaboration, and organizational skills.
• Experience with using Information Technology project lifecycle management processes.
• An active DoD Top Secret.
• Experience with NISPOM, JAFAN, JSIG, DFARS and/or DoD/RMF.
• In‑depth working experience in Windows Server.
• Experience with Net App ONTAP or other 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.
• Experience with Microsoft WSUS, MECM, SharePoint, Skype and/or Exchange.
• Experience with Tenable Nessus, Splunk, and/or Ivanti Security Controls.
• High Performance Computing (HPC) experience in a Linux environment.
• Scripting Experience in APIs, Power Shell, Bash, and/or Ansible.

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.

RTX Corporation is an Aerospace and Defense company that provides advanced systems and services for commercial, military and government customers worldwide. It comprises three industry‑leading businesses – Collins Aerospace Systems, Pratt & Whitney, and Raytheon. Its 185,000 employees enable the company to operate at the edge of known science as they imagine and deliver solutions that push the boundaries in quantum physics, electric propulsion, directed energy, hypersonic, avionics and cybersecurity.

The company, formed in 2020 through the combination of…