Born in Salta, Giménez joined Boca Juniors' youth setup in April 2016, from hometown side Central Norte.[2] On 13 November 2020, after finishing his formation, he returned to his previous club on loan.[3]
After making his senior debut with Central in the 2020 Torneo Federal A, Giménez moved to Primera Nacional side Chaco For Ever on 8 February 2022, also on loan.[4] He was regularly used by his new side, but only scored twice in 30 appearances.
On 5 January 2023, Giménez agreed to a deal with Chacarita Juniors also in the second division, still owned by Boca.[5] On 27 November, after being the club's top goalscorer during the season with 13 goals, Chacarita bought 50% of his economic rights for a rumoured fee of US$ 500,000.[6]