2010 – 2013 Chair, Organizing and Operations Committees
8th International Conference on Multiphase Flow (ICMF 2013)

2013 – 2016 President, Korea Institute of Nuclear Safety (KINS)

1987 – Present Professor, Dept. of Mechanical Engineering and Dept. of Advanced Nuclear Engineering, POSTECH

2004 – 2006 Program Director, Korea Science and Engineering Foundation (KOSEF)
Program Director, Korea Institute of Science and Technology Evaluation and Planning (KISTEP)

2008 – 2010 Member, National Technology Experts Committee, National Science and Technology Commission

2008 – 2012 Member, Policy Advisory Committee, Ministry of Education, Science and Technology

2014 – 2017 Subcommittee Chairperson and Member, Presidential Advisory Council on Science and Technology

1979 ~ 1982 Assistant Prof. of Ajou University

1982 ~ 2008 Assistant, Associate & Full Prof. of Seoul National University

2005 ~ 2007 Dean of College of Eng., SNU

2008.2 ~ 2008.8 Minister, Ministry of Education, Sci. & Tech. of Korean Government

2008.9 ~ 2011.2 President, University of Ulsan

2011.3 ~ 2013.3 Chairman, National Sci. & Tech. Commission of Korean Government

2013.10 ~ 2014.6 Invited Professor, The University of Tokyo

2014.7 ~ 2015.7 Invited Professor, Seoul National University

2015.9 ~ Present President, POSTECH (Pohang Univ. of Science and Technology)

1982 ~ 1986 Assistant Professor Electrical Engineering. Adjunct Associate Professor of Bioengineering. University of Washington

1986 ~ 1990 Associate Professor of Electrical Engineering. Adjunct Associate Professor of Bioengineering and Computer Science. University of Washington

1990 ~ 1999 Professor of Electrical Engineering. Adjunct Professor of Bioengineering, Computer Science and Engineering and Radiology. University of Washington

1998 ~ 2001 Symposium Chair of the SPIE

1999 ~ 2007 Professor and Chair of Bioengineering, Professor of Electrical Engineering. Adjunct Professor of Computer Science and Engineering and Radiology. University of Washington

2007 ~ 2011 Professor of Bioengineering and Electrical Engineering. Adjunct Professor of Computer Science and Engineering and RadiologyM. University of Washington

1974 ~ 1976 Research Associate, Metal Working Laboratory, Korea Institute of Science and Technology

1983 ~ 1986 Research Staff Member, Metals and Ceramics Division, Structural Ceramics Group, Oak Ridge National Laboratory, Tennessee, U.S.A

1986 Professor, Materials Science and Engineering, POSTECH

1991 ~ 1992 Visiting Associate Professor, Department of Material Science and Engineering, Cornell University, Ithaca, New York, U.S.A

2000 ~ 2004 Director, Pohang Accelerator Laboratory, Pohang

2007 President, POSTECH

2009 Chair, Award and Discipline Committee The National Academy of Engineering of Korea

2009 ~ 2010 President, The Korean Ceramic Society

2009 Chair, World Premier Materials Development Planning Committee, Ministry of Knowledge Economy

2010 Member, Atomic Energy Committee, Ministry of Education, Science and Technology

2010 Member, Office of Strategy R&D Planning, Ministry of Knowledge Economy

2011 Chair, Presidential Advisory Council on Education, Science & Technology

1964 ~ 1968 Research Programmer, Computer Science Center, Univ. of Maryland, College Park

1968 ~ 1969 Post Doctoral Fellow, Computer Science Center, Univ. of Maryland, College Park

1969 ~ 1972 Assistant Professor, Dept. of Computer Science, Univ. of Maryland, College Park

1973 ~ 1976 Associate Professor, Dept. of Computer Science, Korea Advanced Institute of Science & Technology

1976 ~ 1979 Senior Research Scientist, National Biomedical Research Foundation, Georgetown Univ.

1976 ~ 1979 Sr. Research Scientist, National Biomedical Research Foundation (USA)

1979 ~ 1982 Associate Professor of Computer Science, The Catholic Univ. of America

1982 ~ 1989 Professor and Chairman of Computer Science, The Catholic Univ. of America

1985 ~ 1986 Visiting Professor of Computer Information Systems, Boston Univ. Overseas Programs (W. Germany)

1990 ~ present Professor, Dept. of Computer Science & Engineering, POSTECH (Chairman, 1990 ~ 1994)

1991 ~ 1994 Dean, Graduate School for Information Technology, POSTECH

1994 ~ 1997 Director, Center for Advanced Software Technology, POSTECH

1994 ~ present Adjunct Professor, Northeastern University, Shenyang, P.R., China

1996 ~ present Adjunct Professor, Yanbian University of Science and Technology, Yanbian, P.R., China

1997 ~ 1998 Visiting Professor, University of Maryland Asian Division, Japan (Tokyo area)

1999 ~ present Adjunct Professor, Shenyang Bohai College, Shenyang, P.R., China

2000 ~ 2002 Dean, Graduate School, Pohang University of Science and Technology

2002 ~ 2003 Acting President, Pohang University of Science and Technology

2003 ~ 2007 President, Pohang University of Science and Technology

1975 ~ 1977 Staff Scientist, Yale University, New Haven, CT.

1977 ~ 1983 Assistant Professor, Department of Chemistry, Texas A&M University, College Station, TX.

1983 ~ 1987 Senior Investigator & Group Leader in charge of Bioorganic Chemistry Lab., Smith Kline & French Laboratories, Philadelphia, PA.

1983년 ~ 1987년 Senior Investigator & Director of Bioorganic Chemistry Lab., French Laboratories, Philadelphia, PA.

1987 ~ 1998 Professor, Department Chemistry, Pohang University of Science and Technology (POSTECH), Pohang, Korea

1987 ~ 1991 Head, Department Chemistry and Life Science, POSTECH

1992 Associate Editor, Korean Journal of Medicinal Chemistry

1994 ~ Editor, Korean Journal of Medicinal Chemistry

1990 ~ 1992 Dean, Academic Affairs, POSTECH

1990 ~ 1998 Director, Biotechnology Research Center, Institute for Applied Bioorganic Research and Basic Science Research Institute, POSTECH

1992 ~ 1998 Associate Editor and Editor, Korean Journal of Medicinal Chemistry

1998 ~ 2002 President, Pohang University of Science and Technology

1998 ~ 2000 Chairperson, Association of East Asian Research Universities

1971. 06 ~ 1972. 08 University of Maryland

1972. 09 ~ 1977. 07 State University of New York

1977. 07 ~ 1980. 04 IIT Research Institute / ECAC

1977년 ~ 1980년 수석연구원,IIT Research Institute / ECAC

1980. 04 ~ 1986. 08 The MITRE Corporation

1983. 01 ~ 1986. 08 George Mason University

1985. 07 ~ 1986. 06 Korean Scientists and Engineers in America, Inc.

1986. 09 ~ POSTECH, Professor

1986. 12 ~ 1988. 05 POSTECH, Dean of Academic Affairs

1988. 05 ~ 1990. 03 POSTECH, Dean of Academic Affairs

1990. 03 ~ 1993. 03 POSTECH, Dean of Policy and Plan

1991. 03 ~ 1994. 02 POSTECH, Vice President

1994. 03 ~ 1994. 08 POSTECH, Vice President

1994. 08 ~ 1998. 08 POSTECH, President

1956. 09 ~ 1959. 08 Instructor, Korea Air Force

1959. 09 ~ 1961. 09 Researcher, Korea Atomic Energy Research Institute

1964. 04 ~ 1966. 06 Researcher, Lawrence Berkeley Laboratory

1966. 06 ~ 1978. 08 Professor, Dept. of Physics & Electrical Engineering, University of Maryland

1978. 09 ~ 1983. 02 Senior Scientist, Lawrence Berkeley Laboratory

1983. 10 ~ 1985. 07 President, Yeonam Junior College in Jinju

1985. 08 ~ 1994. 04 President, Pohang University of Science and Technology