At age nineteen, Giménez joined the Primera División side Nacional Asunción in 2005, and made his professional debut the same season.

He spent one season with the Asunción club before moving to Puerto Montt of the Chilean Primera División for an undisclosed fee.

He returned to Concepción the next season, where he won the 2008 Copa Chile title under coach Jorge Pellicer and recovered his good level of play.

In January 2010, he joined Ecuadorian Serie A powerhouse club Emelec, because the coach Jorge Sampaoli specially requested him.

[2] He made his debut in the match in which Emelec present their players, an event called Explosión Azul, and scored a goal against Independiente José Terán in a 2–0 home win.