Professor Ousmane Thiare has spent most of his academic and professional career at the University Gaston Berger (UGB) of Saint Louis. He joined UGB in October 1994 and obtained a Diploma of Advanced Studies (DEA) in Applied Mathematics in 2000. He finished his studies in France with a PhD in Computer Science at the University of Cergy-Pontoise in 2007.

He became a full-time Computer Science Assistant in 2002, a full-time Assistant Professor in 2008 and then an HDR Senior Lecturer in Computer Science between 2010 and 2015. He also teaches in Nigeria at the African University of Science and Technology (AUST) in Abuja, where he has been an Associate Professor since April 2014.

In July 2015, he was consecrated Full Professor of Universities at UGB. He was the Head of the Computer science department at the Faculty of Applied Sciences and Technology (UFR SAT) between 2007 and 2009, Coordinator of the Post-Graduate Program in Computer Science in 2011 and then Director of the IT Computing Centre in 2013. He has also been the Director of the African Centre of Excellence for Mathematics, Informatics and Information and Communication Technologies (ACE-MITIC) between 2017 and 2020. 

In May 2018, he was appointed Rector of Gaston Berger University of Saint Louis by the President of the University Assembly. Ousmane Thiare remains active in research in his preferred fields, namely: distributed systems, distributed resource management, computing grids, cloud computing, mobile ad hoc networks, wireless sensor networks and the Internet of Things (IoT).