Jean Serge Quesnel is an associate professor at the Ecole nationale d'administration publique of the Université du Québec and adjunct professor at the School of Public Policy and Administration of Carleton University.  He is also senior facilitator at the United Nations Systems Staff College.

Mr. Quesnel is a senior advisor to the Board of the International Organization for Cooperation in Evaluation.  IOCE is formed by the national, regional, and international evaluation associations and networks.  He is the first official member of the International Development Evaluation Association (IDEAS). He is the founding coordinator of the Réseau francophone d'évaluation.

Mr. Quesnel was the director of the Evaluation Offices of the Canadian International Development Agency, the Inter-American Development Bank and the United Nations Children Fund (UNICEF).