Kostis is a researcher, external associate of the Institute of Modern Texts and Manuscripts, which is based at the French Centre for Scientific Research (ENS-CNRS, Paris) and member of the research team “Multilinguisme, Traduction, Création” (ITEM/CNRS). He holds a PhD in Modern Greek Language and Literature from the University of Sorbonne (Paris IV) and postgraduate degrees in Modern Greek Studies (King’s College London) and in Semiotics (Université Dénis Diderot-Paris VII). He has worked as a Postgraduate Fellow at the University of Padua, Italy and he has taught Modern Greek Language and Literature at the Open University of Cyprus, the European University of Cyprus and the University of Padua. His research interests focus mainly on Modern Greek and comparative literature, the genetic approach (critique génétique) of the work of Dionysios Solomos, literary multilingualism, and Modern Greek and comparative metrics. He has published articles in peer-reviewed journals and volumes and he is the co-editor (with George Pilides) of the volume Autografi letterari romanzi e neogreci (SARGON, Padova 2015). He has been Director of the Centre for Literary and Cultural Studies since 2021.