Ronaldo started his career in the youth academy of Salgaocar and participated in the 2015-16 U-18 I-League and reached the Semi-Finals. He scored 9 goals for Salgaocar U18 in the tournament.
In 2019, Ronaldo represented Goa in the 2018–19 Santosh Trophy and reached the Semi-Finals where they lost by 2-1 to Punjab. Ronaldo scored the only goal for Goa in the Semi-Final.[5]
East Bengal
In 2019, Ronaldo signed for I-League side and Kolkata giants: East Bengal FC on a 3 years contract, after a successful week of trials under the observation of coach Alejandro Menendez.[6]