In 2012, new head coach Makis Katsavakis promoted him to the first team, and he made his debut on 14 August 2012, in a friendly game against Veria scoring a goal.
[3] His professional debut was made on 27 August 2012 against Panionios and his first goal against Atromitos in Kleanthis Vikelidis in a 1–1 draw.
After 3 years in Aris, Sounas signed as a free agent, to play with Apollon Smyrnis in the Football League till the end of the 2016–17 season.
[4] On 17 July 2016, Sounas has signed a contract with Lega Pro club Monopoli.
On 2 July 2019, Sounas has signed a contract with Lega Pro club Reggina until the summer of 2021 with an undisclosed fee.