From November 2014 until his death he served as Ambassador of Armenia to Austria as well as Ambassador to the Organization for Security and Cooperation in Europe (OSCE) and International Organizations in Vienna (UNIDO, UNODC, IAEA, CTBTO).

Kirakossian was born in Yerevan, the son of the historian and political scientist John Kirakosyan.

Before embarking on a diplomatic career at the Ministry of Foreign Affairs of Armenia, Kirakossian held several high-level academic positions at the National Academy of Sciences.

Kirakossian was also accredited to Cyprus, Slovenia, Croatia, Albania and the Federal Republic of Yugoslavia.

Four of his books were published in English: He was Professor of History and International Relations at the Yerevan State University.