Sophie des Mazery is a graduate with a political science degree in Paris. She began working for « Comité de la Charte » for a period of five years, and has since developed an excellent experience with non-profit.
In 2004, she resigned as the director from the « syndicat de la presse hebdomadaire régionale », to work for the administration of « Crédit Coopératif » (BPCE Group) as a consultant.

As of 2010, she has joined the team of Finansol.