2012 - Present

• Hanyang University, Department of Chemistry (Professor)

2006 - 2012

• Hanyang University, Department of Chemistry (Associate Professor)

2000 - 2006

• Kookmin University, Department of Chemistry (Assistant Professor)

1997 - 2000

• Korea Research Institute of Chemical Technology (Senior Research Scientist)

1996 - 1997

• University of California, Berkeley (Post-doc)

1992 - 1996

• University of Houston, Department of Chemistry (Ph.D.)

1986 - 1992

• Korea Research Institute of Chemical Technology (Researcher)

1982 - 1986

• Seoul National University, Department of Chemistry (B.S.)