He spent two years as an Assistant Professor, three years as a researcher at HiSIM Research Center, Hiroshima University, Japan, and prior to that he worked as a Postdoctoral Fellow at McMaster University, Canada for two years. He has more than 85 publications including books, journals, conference papers, invited presentations, user manuals, and magazines. Recently, he received IAAM Scientist Medal, Stockholm, Sweden. He served as a technical program committee member, session chair in various international conferences, and reviewer in several international journals. He led numerous projects involving TCAD of nano-engineered devices, compact modeling, solar cell, virtual laboratory, artificial organ, and robot system design.