Mihnea served unde five prime ministers, and was a career diplomat for three decades in the Romanian Foreign Ministry.
Born in 1961, he graduated the Polytechnic University of Bucharest and became a professor until 1991, when he joined the Foreign Ministry. Mr. Constantinescu was president of the International Alliance for the Holocaust Memory, ambassador, special representative of the Romanian Government on energy security issues. He also held various positions of head of the PM’s Chancellery, state counselor or PM’s diplomatic adviser, secretary of state and director general for policy within the Romanian Ministry of Foreign Affairs.
He was the personal assistant of PM Petre Romania, head of cabinet of premier Theodor Stolojan, Government spokesperson, head of cabinet of PM Nicolae Vacaroiu, head of cabinet and adviser of ex-FM Mircea Geoana.
He was head of cabinet of ex-PM Adrian Nastase (2004) and head of cabinet of former PM Calin Popescu Tariceanu (2005-2008).
In 2001 he was personal representative of the OSCE Presidency for South Eastern Europe during the Romanian presidency, and in 2003 he was the Romanian Government’s representative upon the Provisional Authority in Baghdad and counselor of the Iraqi Foreign Ministry.
In 2012 the former premier Victor Ponta named him as state adviser.
At the same time, Mihnea Constantinescu was member of the Royal Council set up by late King Michael I, during October 2010-December 2015.
Before joining the diplomatic corps, he was a professor at the Polytechnic University in Bucharest, in the nuclear energy field, where he also held a PhD.