Didier started in 1985 with GPK and then joined Nikko France (Japanese Broker) in 1991. In 1999, he joined Aurel Leven in the Equities and Bond Back-office and then Natixis Securities from 2001 to 2007 where he became OST manager. In 2007, he went to Dexia Securities with the mission of establishing the middle and back office of the bond operation. He joined Invest Securities in October 2014.