- Director of Department of Dermatology, Lamar premiere clinic
- CTO, Mymirae Research Institute for Dermatologic Science, Seoul, Republic of Korea
- Vice President, Korean Filler education and Research Academy
- Vice President, Korean Aesthetic Surgery & Laser Society
- Principal director of Laser, Korean Academy of Obesity & Aesthetic Treatment
- Head Instructor of Skin Laser Academy of Korea Primary Care Society
- Head Instructor of Skin Disease Academy of Korea Primary Care Society
