He presented his credentials to the United Nations Secretary-General Ban Ki-moon in July 2007.

[2] He was elected as Vice President of the United Nations General Assembly on 14 September 2011.

He also holds a master's degree in international transactions from George Mason University in the United States, Mr. Khazaee has taught macroeconomics and philosophy at Tehran’s Allameh Tabatabai University.

[3] Prior to receiving his appointment as Permanent Representative, Khazaee held positions in international development financing between 2002 and 2007, serving as both Vice-Minister for International Affairs and President of the Organization for Economic and Technical Assistance in Iran's Ministry of Economic Affairs.

Concurrently, he served as Governor of the OPEC Fund, Vice-Chairman of that organization's Investment Committee, Alternate Governor for the Islamic Development Bank and a board member of the Iran-Misr (Iran-Egypt) Development Bank.