- Instructor, Department of Diagnostic Radiology, Yonsei University College of Medicine
- Full-time research lecturer, full-time lecturer, assistant professor, Department of Radiology, Gangdong Sacred Heart Hospital
- Clinical Assistant Professor, Department of Radiology, Korea University Anam Hospital
- Director of Radiology Department, Sun Hospital
- Professor at Catholic Kwandong University International St. Mary's Hospital
- Served as Director of International Cooperation at the Korean Society of Radiology and Intervention
- Invited lecture at the North American Intervention Society and European Intervention Society conferences (2009-2014)
