Principal Systems Administrator -Tucson, AZ

– United States of America – US-AZ-TUCSON-805 ~ 1151 E Hermans Rd ~ BLDG 805 – Onsite

Security clearance:
Secret – Active U.S. citizenship required (U.S. government issued security clearance must be active and transferable on day 1).

• Provide IT systems administration in a heterogeneous Microsoft Windows and Redhat Enterprise Linux environment.
• Understand and have 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. Use troubleshooting techniques to resolve technical problems of a moderate to high scope and complexity, including the integration of hardware and operating systems (OS).
• Understand 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.
• 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%.

• Typically requires a university degree or equivalent experience and a minimum of 5 years of prior relevant experience, or an advanced degree in a related field and a minimum of 3 years of experience.
• Windows and Linux experience.
• Experience in one of the following:
  Active Directory, VMware, networking administration experience.

• Department of Defense Directive (DoDD) 8140/8570 Certification requirements (CompTIA Security+ CE or equivalent certification and an operating system certification).
• In‑depth working experience in Windows Server.
• Experience with data storage, NAS/SAN technologies and solutions.
• Experience using VMware vCenter, vSphere, ESX, and/or other virtual computing methods.
• Experience with security posturing using tools such as SCAP, Nessus, Splunk, Symantec, and other AV solutions, and system hardening.

• Medical, dental, vision, and life insurance.
• Short‑term and long‑term disability coverage.
• 401(k) match.
• Flexible spending accounts and flexible work schedules.
• Employee assistance program and Employee Scholar Program.
• Parental leave, paid time off, and holidays.

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.