Nikolaos has extensive international experience spanning over the past eleven years in the fields of politics and migration. Work experience in the Greek Mission to the EU in Brussels gave Nikolaos the opportunity to collaborate with various EU bodies and institutions. This was followed by a stage at the Embassy of Greece in Tokyo, Japan.
After returning to Greece, Nikolaos worked as a Junior Researcher for a UN University project on migration and then moved to field operations. He was among the first coordinators through the International Organization for Migration (IOM-UN) to handle migration flows to Greece.
He has worked with various organizations, including the Norwegian Capacity/Norwegian Refugee Council (NORCAP/NRC), the World Federation of United Nations Associations (WFUNA), and the European Asylum Support Office (EASO). Nikolaos participated in the International Visitor Leadership Program of the U.S. Department of State in Washington, Arizona, and Minnesota regarding resettlement and integration.