Adamantios Vassilakis was a graduate of the Commercial High School of Chios, Greece, and held a Licence in Political and Diplomatic Sciences from the Free University of Brussels.
Vassilakis joined the Diplomatic Service of the Greek Ministry of Foreign Affairs[1] in 1972 as Embassy Attaché.
In 1977, he moved to the Foreign Ministry's First Department of Political Affairs, serving as Head of Section for the U.S.S.R. and Eastern Europe, as a member of various Greek delegations visiting Eastern European countries, and as a participant in the North Atlantic Treaty Organization (NATO) and Common Market political experts meetings.
In 1985, Vassilakis was appointed Consul General of Greece in San Francisco, California, where he was promoted to First Counselor of Embassy, and, in 1989, Head of Section for bilateral relations with the United States, Iranian, Turkish and Arab Countries, in the Foreign Ministry's Department of Bilateral Economic Relations.
[3] From 2007 until the resolution in 2018 he served as Greece's chief negotiator and representative in the UN-led talks between Greece and the Republic of North Macedonia over the Macedonia naming dispute.