Professor (retired) Amirkabir University of Technology

Professor of Chemistry Department of Chemistry, Faculty of Science, Chulalongkorn University

Associate Professor in Department of Chemistry / Deputy Director of Academic Affairs: Bioenergy and Biochemical Refinery Technology Program / Faculty Senate of TU Thammasat University

Monash-Newcastle University Research Fellow Monash University

Distinguished Professor University of Auckland

Director of Institute Siberian Branch of the Russian Academy of Sciences

Principal Research Fellow National Center for Genetic Engineering and Biotechnology

Principal Researcher Institute of Chemistry and Chemical Technology (Mongolian Academy of Sciences)

Assistant Professor Institute Of Chemical Technology

Professor University of the Philippines Diliman

Postdoctoral Fellow University of Kansas, Lawrence, Kansas, USA

Fresh phd graduate National School of Engineers of Gabes- Gabès university

Lecturer Kaunas University of Technology

SERB Distinguished Fellow Indian Instt. Of Chemical Biology

Scientist - D National Institute of Animal Biotechnology, Hyderabad

Prof.Dr. Yildiz Technical University

Early Career Research Fellow CSIRO

Teaching and research Department of Chemistry, Trichandra Multiple College, Tribhuvan University