As National Technical Director, he guarantees the legal doctrine and technical excellence of his department. He designs service offerings for the firm’s clients. In this capacity, he manages, alongside Gaëlle Menu-Lejeune, a team of 490 professionals at the head and regional offices, together with the Department Directors. Member of the Board of Directors and of the private wealth tax commission of the IACF (Institut des Avocats Conseils Fiscaux), Didier takes part in numerous seminars and conferences on behalf of the Institute. He teaches students in the post-graduate business law program (DJCE) of Caen, where he was nominated patron of the class of 2015. He is also a member of the steering committee of the “Business and Tax Law” department, created in 2018, by the Université de Bordeaux.