Principal System Security (Cybersecurity) Engineer - P4 (Onsite-RI)

Date Posted: 2026-09-08 Country: United States of America Location: US-RI-PORTSMOUTH-PS1 ~ 1847 W Main Rd ~ NIMITZ BLDG 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: Secret - Current Security Clearance Status: Active and existing security clearance required on day 1 At RTX, the world's largest aerospace and defense company, 185,000 great minds are united by purpose and inspired to make a difference solving the world’s most complex problems. With our three market leading businesses, world-class operations and investments in research and development, we offer capabilities and opportunity no one else can. Together, we push the boundaries of known science and find new ways to connect and protect our world. Raytheon brings 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. We deliver solutions that help our nation and allies defend freedoms and deter aggression, creating a safer, more secure world. Join us and help shape the future of aerospace and defense. Raytheon is seeking a well-qualified Principal System Secu [... source excerpt omitted ...] m technically challenging assignments, which will directly contribute to protecting our nation and our Warfighters. This is an onsite position at Raytheon in Portsmouth, RI. What You Will Do Interact with the customer to define SSE requirements, solutions, trades, costs, implementation, system impacts, and effectiveness Develop plans and estimates, task execution, project tracking, reporting, and risk identification and mitigation plans Ensure compliance with National Institute of Standards and Technology (NIST) Risk Management Framework (RMF) controls Consult and assist program management with SSE architecture and issues Support the development of bids and proposals Defin [... source excerpt omitted ...] ecurity controls of networking devices, databases, operating systems, and hardware and software component Integrate cybersecurity development activities Develop top-level system requirements and flow down requirements and implementation concepts to subsystem Understanding, and compliance with, DoD technology release and export licensing policies Provide technical leadership and direction for System Security Engineering and cybersecurity activities across the program lifecycle Evaluate system architecture, hardware, software, interfaces, and proposed design changes for cybersecurity impacts and recommend appropriate security requirements and risk mitigations Coordinate cybersecu