Career
Born in Athens, Papoulis began his football career with Acharnaikos F.C. in the Gamma Ethniki. He made his Super League debut in January 2010 when signed professional contract with Panthrakikos. During the second half of the 2009-2010 season he competed for the club
Οn January 2011, he left the club, signing a six-month contract with OFI helping it to return to the Superleague Greece after the play-offs.
He stayed in the club the following year, helping to avoid relegation as a new-comer in the league and has a remarkable year. He succeeded to nominate as a Most Valuable Player of the week while he selected among the top 18 players in the 2011-2012 Superleague season.
On summer 2012 after two years in OFI, Papoulis signed an one-year contact with Cypriot club Apollon Limassol. Papoulis 2014-2015 season was the best season of his career.
Papoulis, wearing for three years the jersey of Limassol club already counts an Cypriot Cup and two European appearances in Union of European Football Associations Europa League tournament phases.
These years in Apollon was the top scorer for the blues with this year being the most productive in the league. The Limassol derby had been marred by fighting prior to kickoff in the streets close to the Tsirio Stadium between fans from both sides.