Kostas Repanas is a policy officer at the Open Science Unit, in the Directorate General Research and Innovation (DG RTD) of the European Commission. Kostas is mainly involved in the data and interoperability aspects of the European Open Science Cloud (EOSC), as well as in advancing the Open Science agenda of the Commission. He is a long-standing advocate for Open Access, Open Data and Open Science, having previously worked for EMBL Heidelberg, the Agency for Science, Technology and Research (A-STAR) in Singapore, and the EU ESFRI landmark project ELIXIR. Kostas is also the co-founder of the Asian Open Access community (Asia OA) in collaboration with the National Institute of Informatics (NII-Japan) and the Confederation of Open Access Repositories (COAR). He holds a PhD in Biochemistry and Crystallography from the Netherlands Cancer Institute (NKI) in Amsterdam and the Erasmus University of Rotterdam.