Nicolò Costantini entered the diplomatic service in 2011 and was assigned to the Secretariat of the Diplomatic Protocol. In 2015, he was posted to the Embassy of Italy in Vietnam where he dealt with political, cultural, press and consular affairs, and also served as deputy head of mission from 2017 to 2020. He became the Consul of Italy to Western Australia in 2020.
Mr Costantini holds a Bachelors degree in Political and International Relations from the University of Pisa, and a Master of Diplomatic Studies from the Italian Society for International Organizations.