Biocatalysis and Enzyme Reaction Engineering
Proteomics and Application of Mass spectrometry

1988 – 1991 Scientist, Department of Microbiology and Fermentation, Genencor International Co., S. SanFrancisco, U.S.A
1991 - present Professor, School of Chemical and Biological Engineering, Seoul National University, Jointly appointed to Institute for Molecular Biology and Genetics, Seoul National University
1997 – 1999, Head, Interdisciplinary Graduate Program of Bioengineering, Seoul National University
2005 - 2006 "
2005 - 2007 Director, Institute of Bioengineering, Seoul National University
2014 - 2014 President, KSBB(The Korean Society for Biotechnology and Bioengineering)
2015 - present Fellow, The National Academy of Engineering of Korea
2016 - present Trustee, Suh Kyungbae Foundation(SUHF)
2019 - present Commissioner, Bio-MAX / N-Bio Institute
2020 - present Principal investigator, KIURI program(Korea Initiative for fostering University of Research & Innovation)

2010 Biocat Award 2010, from 5thInternational Congresson Biocatalysis, Germany
2015 Academic Award, The Korea Society for Biotechnology and Bioengineering
2020 Excellent Engineering Professor Award (Academic Award), Seoul National University