Jerónimo has previously played for a number of clubs in his home country, including River Plate, San Lorenzo, Instituto, Estudiantes de La Plata and Independiente Rivadavia.

[3] His first appearance for Barnsley after signing on a one-year contract, was on the same day against non-league Buxton, where he scored his first goal for the club, in a friendly match.

[4] On 10 August 2012, it was announced Jerónimo had agreed to terms with Australian club Adelaide United on a one-year contract pending a successful medical clearance.

A week later he scored his first A-League goal against Western Sydney Wanderers in Adelaide on 12 October, making amends for a penalty he had earlier missed.

The referee later adjudged Jerónimo to be illegally tackled, which led to Wellington Phoenix defender Ben Sigmund being red carded.