Al Thani started his diplomatic career in May 1997 at the Department of European and American Affairs at the Ministry of Foreign Affairs where he stayed until August 1998. Following his service at the Ministry of Foreign Affairs he joined the Qatari Mission to the UN in New York, where he remained till September 2000. From October 2000 to October 2004, he served as a member of the Qatari diplomatic mission in Washington D.C. In November 2004 he became a member of the Qatari diplomatic mission in the Belgian capital, where he acted as the Qatari Liaison with NATO. After his service as Ambassador of Qatar to Brussel, from October 2007 to July 2011, Al Thani served as the Permeant Representative of the State of Qatar to the United Nations till October 2013. The next three years he was the Qatari Ambassador to France.[1] Since 2016, Al Thani has been the ambassador of the State of Qatar to the United States of America.[2]