Ortiz came through the youth ranks at Defensa y Justicia.[3][4][5] His first appearance in a first-team squad arrived in December 2018 against Huracán under manager Sebastián Beccacece, though the attacking midfielder wouldn't be substituted on in the away Primera División draw.[2] He soon returned to their academy, with Hernán Crespo reintegrating him into the senior set-up in late-2020.[2] After going unused on the bench versus Colón on 21 November in the Copa de la Liga Profesional, Ortiz made his debut on 29 November in a 3–2 home defeat to Central Córdoba; starting the match, before being subbed for Jonathan Farías.[2][6]