| 1983-2002 |
|
Professor, Chemistry/Bioinformatics Soong Sil University. |
| 1984 |
|
Visiting Professor, Institute Molecular Science, Japan |
| 1987-1989 |
|
Visiting Scientist, Cornell University, USA |
| 1995-1997 |
|
Visiting Professor, Cornell University, USA |
| 2000-2002 |
|
President, BioMed Park Inc. |
| 2002-2009 |
|
Technical Advisor, Equispharm Inc. |
| 2002-2012 |
|
Technical Advisor/CEO, ChiroLite Inc. |
| 2003-2005 |
|
Advisor/Cofounder, CHEMON Inc. |
| 2005-2010 |
|
Advisor, fqubed Inc., USA |
| 2007-2008 |
|
President, Korea Society Bioinformatics & Systems Biology |
| 2010-2019 |
|
Director, Integrative Drug Discovery Center at Yonsei University. |
| 2006-present |
|
Chairman, Asia Hub for e-Drug Discovery |
| 2018-present |
|
CTO/Cofounder, BaobabAiBio Inc. |