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Ross Niebergall, Ph.D., is the president of the Aerojet Rocketdyne Segment at L3Harris Technologies. He was appointed president in 2023 following L3Harris’ acquisition of propulsion systems maker Aerojet Rocketdyne.

Previously he was vice president and chief technology officer of L3 Harris where he led the company’s global engineering function and managed the cost, execution and quality of programs. He planned, prioritized and led IRAD projects, implemented best-in-class process standards, drove improvements in quality and efficiency, and led technology talent development efforts.

Prior to joining L3Harris in 2017, Dr. Niebergall served as vice president, deputy for development programs, engineering and technology, for Raytheon’s Intelligence, Information and Services unit. In this role, he supported the development of a diverse portfolio spanning both commercial and defense markets, including cybersecurity, command and control systems, sensors and imaging, and mission support products.

During his career at Raytheon, Dr. Niebergall held significant technical and leadership positions, including chief executive officer of U.S. operations for Thales-Raytheon Systems, a joint venture, and senior director of engineering for the C4I Systems business. He began his career in Raytheon’s Space and Airborne Systems division.

Dr. Niebergall has a bachelor’s degree from the University of Regina in Canada and master’s and doctorate degrees in mathematics from the University of Notre Dame. He has served as an associate professor of mathematics and computer science at the University of North British Columbia and as a post-doctoral research fellow and visiting scientist at McMaster University in Ontario.

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