Hwan Won Chung joined the Korea Institute of Science and Technology, Seoul, Korea, in 2005/5, as a Specialist after he finished his M.S.(Interdisciplinary Program in Bioinformatics). He was focused on the development of new computational methods and algorithms; for example, he developed a new docking program named as tozongdock or parallel variable neighborhood search, which is useful to find hit compounds in drug discovery. He also used coarse graining model and molecular dynamics to understand the behavior of macro molecules. Currently, he is trying to design a scoring function in molecular docking with better prediction ability and precision.