Sandra Chabrier-Breil Martin began her career in 1994 with Bouygues Construction, working for a subsidiary of Bouygues Energies & Services (Transel) as a site engineer on transport lines, before becoming Construction Manager and then Operations Manager on various assignments in France.

In 2010, she joined Bouygues Bâtiment International in Singapore, where she was in charge of all the technical lots for a major infrastructure project: a large sports and leisure complex called Sports Hub.

Returning to Bouygues Energies & Services in 2014, she was appointed Executive Vice President of the France & International Business Unit, in the Transmission & Distribution and Photovoltaic activities sectors. In this role, she manages teams on a number of major international projects.

In 2014 and 2018, she received the jury's special prize at the Trophée de la femme du BTP (award for women in the construction industry), then the Trophée de la meilleure trajectoire à l'International (award for the best international trajectory) awarded by Le Moniteur.

In 2021, Sandra Chabrier-Breil Martin is Chairman of Aximum, a Colas subsidiary specialising in road safety and mobility solutions.

In october 2024, Sandra Chabrier-Breil Martin has been appointed Director of Strategic Development and Projects for the Colas Group. Reporting to the CEO, Pierre Vanstoflegatte, she joins the Executive Committee.