Couderc was assistant to the mayor Jacques Chirac, and then member of Parliament elected in the 13th district.
She organized the restructuring of Première magazine by replacing Alain Kruger by Patrick Mahé, in the aftermath of the attacks of 11 September 2001, but in August 2005, validated the coverage of Paris Match, on Cécilia Sarkozy and Richard Attias, in the absence of Arnaud Lagardère and was fired.
[2] From October 2004 to June 2010, Couderc was president of SPMI (Union of the magazine and information press).
She remained until 30 June 2011, when she was elected chair of the Board of Directors following the change of status of the company..
In 2015, Couderc joined the French Economic, Social and Environmental Council as a representative of private industrial, commercial and service companies.