2015-present - Head (YSU) of the YerPhI & YSU Joint Laboratory of Theoretical Physics, Armenia

2004-present - Professor, Department of Mathematics and Mathematical Physics, Tomsk Polytechnic University

2006-present - Leading Researcher, Laboratory of Theoretical Physics, Yerevan State University, Armenia

2002-2005 - Senior Researcher, Department of Theoretical Physics, Yerevan State University, Armenia

1996-2002 - Senior Researcher, Laboratory of Theoretical Physics, Joint Institute for Nuclear Research, Dubna, Russia

1992-1995 –Researcher, Laboratory of Theoretical Physics, Joint Institute for Nuclear Research, Dubna, Russia

1990-1991 - Junior researcher, Department of Theoretical Physics, Yerevan State University, Armenia