After studying engineering at Centrale-Supélec and public affairs at Sciences Po Paris, Nathalie joined ENGIE in 2010 as a research engineer on smart grids. She later became co-creator of an internal digital start-up. Subsequently, she developed a Smart City platform for local authorities in France to enhance their regional performance. She transitioned to ENGIE's subsidiary Ineo, where she served as Chief of Staff to Ineo's CEO, then Market Director for Connected Cities and Territories. Following this role, she moved to ENGIE's headquarters to develop service activities for cities, as well as the tertiary and industrial sectors, in France and internationally. Followingthe creation of the EQUANS Group within ENGIE, and its subsequent move to the Bouygues Group, she joined the Cities and Territories Division as the Director of National Activities and Major Projects.