AI-related lecture online at Nepal University as a volunteer (March 2021- )

AI consultant (Dec. 2022- ), Smart bank (AI and Data company, S. Korea)

Seoul National University of S&T, Researcher, 2021-2022

Full professor, Adama Science and Technology University, Ethiopia, April 19, 2019-Feb. 28, 2021.

Full professor, Director, Korean Experts Center of TDT University, Vietnam

Dean, Graduate school of Huree University, Mongolia, 2015.

Prof., Director, Korea Expert Center, University

Prof., Dept. of Control Eng., Hanbat National University (1993-2015)

Associate fellow prof., University Malaysia Sabah

Visiting Prof., Budapest University of Technology and Economic (2012-2013)

EU-FP7 (EU- Framework Programme) NCP (ICT)

Director, KNRF (Korea National Research Foundation), 2006-2008.

Visiting Prof., University of Alberta, Canada, 1999 - 2000.

Inviting researcher, ANL (Algonne National Lab.), USA, 1988

Inviting Res, AECL (Atomic Energy Canada Lab.), Canada,1985-1986.

Korea Atomic Energy Research Institute, Nov., 1977-March, 1993.

Korea-Hungary Joint Work: ‘Robot motion Consult & Lecture, 2010-2011.