[3][4] He was promoted into senior football in October 2019 by manager Mariano Soso, who selected the forward as a substitute for a Primera División fixture with San Lorenzo.
[2][5][6] Miritello was subsequently subbed on for his professional debut, as he replaced Fernando Márquez with fourteen minutes remaining of a 3–1 win at the Estadio Pedro Bidegain on 30 October.
[8] Miritello scored his first senior goal, whilst with Flandria, on 29 February 2020 versus Fénix; in what was his penultimate match for the club due to the COVID-19 pandemic.
[2] In the following years, Miritello spent time on loan at clubs such as Real Pilar, Talleres RE and San Martín de Tucumán.
On 31 July 2023, Miritello joined Super League Greece club Asteras Tripolis on a season-long loan with an option to buy for the summer of 2024.