A graduate of the École nationale d’administration (ENA) and the Institut d’études politiques de Paris (Sciences Po), Sandra Lagumina also holds a Master of Common Market Law and of Public Law. She began her professional career with the French Council of State, where she held the position of Auditor and then Master of Petitions from 1995 to 1998. Sandra Lagumina then became Technical and Legal Advisor to the President of the National Assembly. In 2000, she joined the office of the Minister of the Economy, Finance and Industry as a technical adviser in charge of legal issues, public procurement and competition law. She was then appointed Deputy Director of Public and International Law in the Legal Affairs Department of the Ministry and a Judicial Officer of the Treasury (2002-2005). In 2005, she joined the Gaz de France group, where she held several positions in the areas of strategy and law. Between 2008 and 2013, she served as General Counsel for GDF Suez. In 2013, she was appointed Chief Executive Officer of GRDF (Gaz Réseau Distribution France). In 2016, she was named Deputy Chief Executive Officer of Engie and, in 2017, became Chief Operating Officer of Asset Management at Meridiam. She is a member of the Board of the French Competition Authority.