Mrs. Sandrine Dufour assumed the post of Chief Financial Officer of Proximus on 1 April 2015. In addition to the Finance domains, Sandrine Dufour is also responsible for the Wholesale activities as well as the Group Internal Services. From 1999 to May 2013, Mrs. Dufour held various positions at Vivendi in France and the US; the latest being Deputy Chief Financial Officer and Director of Innovation. Afterwards, she became Executive Vice President Finance & Strategy at SFR. Before that, she held various posts as a financial analyst in France, at BNP and Credit Agricole Cheuvreux (European telecom sector).

Mrs. Dufour holds several degrees from ESSEC Business School, the Société Française des Analystes Financiers, and the Chartered Financial Analyst (CFA) Institute.

Mrs. Dufour was an independent director at the French company Solocal until March 2018. She is a member of the Board of directors of the Proximus subsidiaries BICS, Connectimmo, Be-Mobile, PGS, Proximus Pension Fund, and Proximus Art. Since 1 January 2019, she is also the chairman of the Board of Directors of Proximus Luxembourg which is the surviving entity after the merger between Tango and Telindus Luxembourg.