Bonnot started his professional career with Paris Saint-Germain in 1990, before joining SCO Angers in 1995. He had a loan spell with Watford for the 1998-99 season, before making the move permanent. He made 12 appearances for the Hornets during their 1999-2000Premiership campaign. He fell out of favour next season and joined Queen's Park Rangers on a free transfer in 2001. After just one season with the club he retired.