During his tenure in New York, he served as first chairman of the United Nations Peacebuilding Commission for the Central African Republic.
Before occupying this position, he was chief of staff to the Belgian Minister of Foreign Affairs and Director General for Bilateral and Economic Relations.
From 1994 until 1997, Jan Grauls was deputy chief of staff and diplomatic advisor to HM the King.
Jan Grauls served earlier in Bonn, Tunis, London, Washington and at the Belgian Permanent Representation to the European Union.
Since his retirement from the diplomatic service, baron Grauls became a member of the Board of the Francqui Foundation, the Europalia International Arts Festival, the Belgo-British Conference and the Quartier des Arts Association (Brussels).