Mar 2003~Feb 2004 Internship in Asan Medical Center, Seoul, South Korea 

Apr 2004~Apr 2007 Military service in 17th infantry Division, Gyeonggi province, South Korea 

May 2007~Feb 2011 Radiology, Resident training in Asan Medical Center, Seoul, South Korea 

Mar 2011~Feb 2012 Radiologist in Osan Hankook Hospital, Gyeonggi province, South Korea 

Mar 2012~Feb 2014 Interventional radiology fellowship in Samsung Medical Center, Seoul, South Korea 

Mar 2014~Feb 2015 Instructor, Samsung Medical Center, Seoul, South Korea 

Mar 2015~Feb 2017 Clinical Assistant professor, Samsung Medical Center, Seoul, South Korea 

Mar 2017 ~Feb 2019 Assistant professor, Samsung Medical Center, Seoul, Korea 

Mar 2019 ~Present Associate professor, Samsung Medical Center, Seoul, Korea