Since January 2018, Agnès Romatet-Espagne has served as Chief International Development Officer, SNCF Mobilities, and as a member of the Executive Committee for the SNCF public rail group (SNCF, SNCF Mobilités and SNCF Réseau).
A graduate of the Institute of Political Studies in Paris, she began a career in diplomacy in 1983.
From 1991, she held a variety of positions as chief of staff and parliamentary attaché to French secretaries of state. In 1993, Agnès Romatet-Espagne became a culture and development adviser at the French embassy in Jordan and in 1999, she began handling external communications for France’s embassy in Canada.
From 2003 to 2005, she participated in humanitarian missions in Senegal, then returned to France, taking positions in foreign affairs and later European affairs. In 2009, she was named adviser to the Chairman of France's Financial Markets Authority, and beginning in October 2011, she headed a variety of offices at the French embassy in Australia and at the French Ministry of European and Foreign Affairs.
In February 2016 Agnès Romatet-Espagne was named minister plenipotentiary, and before she joined SNCF, she served as spokesperson for the French Ministry of European and Foreign Affairs.