SeniorSystemsAdministrator

**Date Posted:** 2026-05-14 **Country:** United States of America **Location:** US-AZ-TUCSON-928 ~ 1151 E Hermans Rd ~ MULTI PURPOSE FAC 928 **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 Type:** DoD Clearance: Top Secret **Security Clearance Status:** Active and existing security clearance required on day 1 Job Description 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. **What You Will Do** : * Provide IT systems administration in a heterogeneous Microsoft Windows and Redhat Enterprise Linux environment. * Experience with 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). * 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. * **Full time 100% Onsite position** _._ **Qualifications You Must Have:** * Typically requires a University degree or equivalent experience and a minimum of 2 years of prior relevant experience, or an Advanced Degree in a related field. * Active and transferable U.S. government issued Top Secret security cle