- Myongji Hospital Education and Training Department (Neurology) Resident
- Clinical instructor of neurointerventional procedures, Department of Radiology, Seoul National University Hospital
- Deputy Director, PI, Catholic Kwandong University International St. Mary's Hospital
- Director, Clinical Trial Center, Catholic Kwandong University International St. Mary’s Hospital
- Director of Medical Science Research Institute, International St. Mary's Hospital, Catholic Kwandong University
- Associate Professor, Catholic Kwandong University International St. Mary's Hospital
- Regular member of the Korean Dementia Society
- Regular member of the Korean Headache Society
- Regular member of the Korean Clinical Neurophysiology Society
- Regular member of the Korean Neurological Association
- Regular member of the Korean Stroke Association
