Jae-Ung Lee earned a B.S. in Ship Operating System Engineering (2003), an M.S. in Power Machinery Engineering (2011), and a Ph.D. in Power Machinery and Materials Engineering (2016), all from Korea Maritime & Ocean University (KMOU). He is currently an Associate Professor in the Department of Marine System Engineering at KMOU. His work in marine propulsion systems and machinery diagnostics has led to numerous publications, academic presentations, invited lectures, and curriculum developments; active memberships in academic societies such as the Korean Society of Marine Engineering and the Korean Society for Power System Engineering; and multiple honors, including awards from the Ministry of Oceans and Fisheries and the Korean Federation of Science and Technology Societies. His research interests include shaft alignment and vibration analysis, damage diagnostics of propulsion components, condition-based monitoring, residual life assessment, intelligent fault detection, and root cause analysis of anomalies in surface ship propulsion systems.