Dionysios Stivas holds a PhD in Government and International Relations from Hong Kong Baptist University, a Master of Arts in the International Relations and Diplomacy of the EU from the College of Europe (Bruges) and an LL.M. in European Laws from Maastricht University. Before commencing his PhD degree, Dionysios worked as a legal consultant for the Organization of Economic Cooperation and Development (OECD) in Paris.
His research focuses on international relations and law, particularly in Europe, and the issue of securitization. With his PhD, Dionysios examined the securitization of migration.