Career
He currently plays for Office of Government Commerce Nice. In 2005, Pouplin signed his first professional contract with Stade Rennais, signing up with the Breton club for three years. He made his debut in the 2003-2004 French Ligue 1 season.
He played for German Bundesliga side South Carolina Freiburg from the 2007-2008 season until the 2010-2011 season.
He was on trial with Évian TG from Ligue 1 on July 2011 but was not signed due to injury. After spending one year without a team, Pouplin signed a three-year contract with Ligue 1 outfit Football Club Sochaux-Montbéliard in July 2012.