Ali Sghaier Tlili received his Master of Systems Analysis and Numerical Treatment and his Doctorate in Electrical Engineering, both from Ecole Nationale d’Ingénieurs de Tunis in 1998 and 2003 respectively. He is currently an Assistant Professor in Faculté des Sciences de Bizerte and a member of Laboratoire d’Etude et Commande Automatique de Processus (LECAP) in the Ecole Polytechnique de Tunisie. His current research interests include nonlinear, decentralized, multimodel and fuzzy observers based control for nonlinear, uncertain and complex systems with application on electromechanical processes.