Marcus Klamert is a legal officer with the Executive Office for Constitutional Matters of the Austrian Federal Chancellery and a lecturer at the Vienna University of Economics and Business. He was previously a Legal Officer with the European Commission (DG SANCO), Senior Lecturer at the Institute for European and International Law at the Vienna University of Economics and Business (WU), Fellow of the Austrian Academy of Sciences (APART), Visiting Fellow at the Institute of European and Comparative Law (IECL) at the University of Oxford, Visiting Fellow at the Law Department of the European University Institute (EUI), and has practised as an Associate with Freshfields Bruckhaus Deringer in Vienna. He holds a PhD from the University of Vienna, and a Masters from the University of Amsterdam. He has published on external relations, the effect of directives, European constitutional law, and the fundamental freedoms.