Youssri is a Professor of Mathematics at Cairo University, Egypt. His research primarily focuses on the numerical analysis of differential equations, particularly on fractional calculus. He obtained both his M.Sc. (2011) and Ph.D. (2014) in Mathematics from Cairo University. Youssri has authored approximately 150 peer-reviewed publications in reputable international journals; he serves as an adjunct faculty member at the American University in Cairo AUC.