In 2004, he was signed by Primera B Nacional club Nueva Chicago, with whom Simón won the 2006 Clausura Tournament, but lost the championship playoffs against Godoy Cruz.

In the next season, after Cacia was sold (himself remained in Piacenza due to injury), he became the only central forward in the starting XI, but soon the coach preferred Houssine Kharja as the emergency striker, Julien Rantier and Giuseppe Gemiti in supporting role.

In January 2008, Cacia returned to Fiorentina and Kharja was sold, but the club signed Zlatko Dedič (loan) and Alessandro Tulli, made Simón remained as the third striker.

[2] On 10 July 2011, Simón joined to Chilean Primera División club Unión La Calera for play the Clausura Tournament of that season, after of put end to his contract with Piacenza.

[6] Following his retirement, Simón returned to his hometown, Mar del Plata, and began to work in football coaching for youth players in the Universo FC academy.