– Department of Nuclear Medicine, College of Medicine, Seoul National University: Resident Doctor (2008-2012)
– Department of Nuclear Medicine, College of Medicine, Seoul National University: Research Fellow (2012)
– Department of Radiology, University of Wisconsin Madison, School of Medicine and Public Health (2015-2017)
– Assistant/Associate professor, Graduate School of Convergence Science and Technology, Seoul National University (2017-present)
– Associate Dean, Graduate School of Convergence Science and Technology, Seoul National University (2022-present)
– Editor-in-Chief, Health Nanotechnology (2023-present)