Yongji's research interests focus on fundamental fluid mechanics, involving interfacial fluid dynamics, water wave theory, gas dynamics, and aeroacoustics. He is currently a research assistant at MIT in Professor Bourouiba's Fluid Dynamics of Disease Transmission Group (FDDT), aiming to understand fundamental physical mechanisms shaping the transmission dynamics of pathogens in human and plant population. His project focuses on studying the disease transmission due to drop fragmentation upon impact. Before coming to MIT, Yongji worked as a full-time research assistant at the University of Hong Kong (HKU). He was responsible for the "Control of High-Order Acoustic Modes in Aircraft Engines" project, part of the National Basic Research Program of China (Program 973). Yongji was selected to join the Shanghai Jiao Tong University-HKU dual degree program. He received a bachelor's degree in Mechanical Engineering with First Class Honours by HKU in 2012. In 2013, he graduated from Cambridge with a Master of Advanced Study in Applied Mathematics (MASt) with distinction.