A Member of the Royal Belgian Academy of Medicine and of the Romanian Academy of Medical Sciences, Stefan N. Constantinescu was, between 2018 and 2021,  Vice-President for Education and Training of the Federation of European Academies of Medicine (FEAM). In May 2021, he was elected as the new President of FEAM for the 2021-2024 mandate.

Stefan N. Constantinescu is Professor of Molecular and Cell Biology at Université catholique de Louvain, where he coordinates the Cell Signalling and Molecular Haematology Unit at Duve Institute. He is also a Member of the Ludwig Institute for Cancer Research, Brussels, Belgium.