- Branch Director, Avalon YeonSu Campus, Incheon, Korea 03/ 2011 ~ 12/2012
- Assistant Director, Seoul SDA Language Institute, Seoul, Korea 03/2011
- Recruiting Director, International Affairs Dept. SDA Language Institutes, Sydney, Australia 3/2010~02/2011
- Assistant Director, International Affairs Dept., Headquarters, 03/2009~02/2010
- Director, Sung Dong SDA Language Institute, Seoul, Korea 08/2009~02/2010 Director, Hold two positions concurrently
- Director, East Seoul SDA Language Institute, Seoul, Korea 11/2005~02/2009
- Vice President, Gyeonggi English Village Yangpyeong Camp, Gyeonggi-Do, Korea 01/2008~07/2008 Hold multiple positions concurrently
- Director, I-Camp Dept.(After School Program), Headquarters, SDA Language Institutes, Seoul, Korea 03/2007~05/2008 Hold multiple positions concurrently
- Director, Busan SDA Language Institute, Busan, Korea 03/2000~02/2006
- Assistant Director, Nam-Young SDA Language Institute, Seoul, Korea 09/1998~02/2000
- Assistant Director, Japanese Program Director, Seoul SDA Language Institutes, Seoul, K