Jadson became a cult figure with the Lions for his uncompromising style of play, lining up either at left back or in the heart of midfield in 2017.
His accurate long passes from deep in his own half set up goals in each of the final two matches of the season as he finished the campaign with two assists. He led the team with seven yellow cards.
Jadson has spent time with Clube Atletico Mineiro, where he played with fellow Boston City defender Gabriel De Souza, and with Marilia and Esporte Clube Sao Bento in Sao Paulo.
He impressed during a trial when lining up for the Lions in an offseason friendly played against Assumption College in August 2016.