Prior to joining UW Bothell School of STEM in 2014, he was an assistant professor in the Department of Mechanical and Industrial Engineering, Qatar University, Qatar, and led Smart Medical Devices Lab (SMDL). From 1997 to 2001, he was with Samsung Electro-Mechanics, Korea, as a research engineer and designed various precision motors for information and optical devices. Dr. Yoon has 15 peer reviewed journal papers and 20 peer reviewed conference proceedings.