During her years in college, Marie worked for Estée Lauder, as assistant to the public relations manager in 1994, and as an assistant to the managing director of ING Numismatic Group SA in Geneva.
Aastal 1994 töötas Marie Estée Lauderis avalike suhete juhi assistendina ja Genfis ING Numismatic Group SA tegevjuhi assistendina.