Complex sentence: Hervé Biausser is the Director of the French elite engineering school École Centrale Paris (ECP), a position he has held since September 2003, and the General Director of Supélec (École supérieure d'électricité) since september 2013.
Split into simpler sentences: Hervé Biausser is the Director of the French elite engineering school École Centrale Paris (ECP), a position he has held since September 2003. He has held the position of General Director of Supélec (École supérieure d'électricité) since september 2013.