Jean Yves Le Gall is since 2013 the President of CNES, the National centre for Space Studies.
It is in 1981 that he began his career as a researcher at the Astronomy Laboratory, French National Scientific Research Centre; he worked there on the European scientific satellites project Hipparcos and ISO. He was appointed as advisor for space affairs in 1985 at the Minister for the Postal Service, Telecommunications and Space. There, he participated in the definition of CNES and ESA programs. He also was Managing Director at a subsidiary of CNES in 1993, called Novespace.