Positions hold:
- Department of Mathematics, College of Sciences, King Saud University, P. O. Box 2455, Riyadh 11451, Saudi Arabia,
- Group Leader, Group of Modern Computational Methods, Ural Federal University, 620002, 19 Mira Street, Ekaterinburg, Russian Federation,
- Department of Automation Engineering, TEI of Sterea Hellas, GR 34400, Psachna Campus, Psachna, Greece (Distinguished Visiting Professor) and
- Section of Mathematics, Department of Civil Engineering, Democritus University of Thrace, Xanthi, Greece (Visiting Professor)