• Professor, Department of Applied Mathematics, Faculty of Mathematics, K.N. Toosi University of Technology, 2016-present
                        • Associate Professor, Department of Applied Mathematics, Faculty of Mathematics, K.N. Toosi University of Technology, 2011-2016
                        • Chair of the "Scientific Computations in OPtimization and Systems Engineering (SCOPE)" rsearch center, Mathematics Department, Faculty of Science, K.N. Toosi University of Technology, 2011-present
                        
                        • Deputy of Education, Faculty of Mathematics, K.N. Toosi University of Technology, 2013-2016
                        • Deputy of Education, Faculty of Science, K.N. Toosi University of Technology, 2012-2013
                        • Director of graduate studies, Faculty of Science, K.N. Toosi University of Technology, 2010-2012.
                        • Assistant Professor, Mathematics Department, Faculty of Science, K.N. Toosi University of Technology, 2006-2011.
                        
                        • Ranking number two among 10000 students taking part in M.Sc. entrance examination, 1997.
                        
                        • Ranking number one among all students, Department of Mathematics, Razi University, Kermanshah, Iran, 1997
                        
                        • Ranking number one in PhD program, Department of Mathematics, Sharif University of Technology, Tehran, Iran, 2005
                        
                        • Member of American Mathematical Society, 2016-present
                        
                        • Member of Iranian Mathematical Association
                        
                        • Member of Iranian Operations Research Society
                        
                        • Member of Advanced Optimization Laboratory, McMaster University, Hamilton, Ontario, Canada, 2003-present
                        
                        • Member of European Atelier for Engineering and Computational Sciences (EUA4X), 2006
                        
                        • Inspector of Peyman Paya Elevator and Escalator Company, 2005- present
                        
                        • Supervisor of the project entitled ”Text to Communication (TTC) System” which was ranked number 3 among all projects in the computer science filed of ”8th Khwarizmi Youth Award”, December 2006