When he reaches 15, he receives a scooter for his trips to high school. Very quickly, he seeks to improve the performance of his vehicle: change of muffler, the variator and finally  each of the mechanical parts.

The light is on : he likes that, and is moving towards an A-level STI Mechanical Engineering option Motorized Systems, to eventually make it his job. The driving license only confirms this (6 days after his 18 years) with a certain taste for speed (on the race track).

No opportunity to do mechanics is put aside: professionally at Mercedes Commercial Vehicles and in his spare time preparing his race car and maintaining those of friends.

Too meticulous for the performance of a garage, he goes to the after-sales quality and integrates the Renault after-sales department where he designs the methods by carrying out the operations himself on the vehicles. Paradoxically, the official repair times happen to be based on the time required for Bertrand to carry out the intervention.

With experience, he joins the Quality team in charge of diagnostic support to the Renault after-sales network. The task is to find solutions that the dealers' experts have not been able to identify directly on the vehicle.

A discussion with a close friend working at FLUXEA (formerly Publitest) reminds him of the pleasure of precision in writing methods of intervention. He then joins the company specializing in multibrand methodology and is enriched by the various technical solutions of all manufacturers present in Europe.