After graduating with a Master in 1992, he worked as a diplomat in the Romanian Foreign Affairs Ministry, between 1997 and 1999 being appointed as chargé d'affaires at the Romanian Embassy in Ireland. After the Social Democrat Party won the election, George Maior was appointed as State Secretary and Head of the Euro-Atlantic and Defense Policy Department of the National Defense Ministry. From this position, he led the NATO accession negotiations, concluding with a successful active integration of Romania in the Alliance and the signing of several contracts for the acquisition of military equipment (2 frigates and numerous flying equipments). On August 24, 2004 he received the diplomatic rank of Ambassador.