He started his career as a research scientist with the IRSID steel research institute, then joined Usinor in 1975, taking various positions at head office and in manufacturing.

He joined Renault in 1989, in charge of the manufacturing progress plan at the Manufacturing Department. He was appointed Assistant General Manager of the Renault Flins plant in 1991, then General Manager in 1993. In May 1999 he became Renault Vice President for Powertrain Manufacturing.

From March 1st, 2007, Gérard Leclercq is appointed member of the Renault Management Committee and takes charge of the Group Human Resources Department.

From December 1st, 2010, he takes the charge of the Manufacturing and Supply Chain and enters the Group executive committee.