[3][4] 2023 resulted in further success, as he finished second in the Rotax US Trophy, as he joined the championship in the Senior category.

[8] In 2024, it was announced that Rivera would be stepping up to cars to join Campos Racing for the 2024 Formula Winter Series and the 2024 F4 Spanish Championship.

[9] In the Formula Winter Series, he showed signs of pace, and scored one podium over 11 races, as he finished 15th in the championship and 4th in the rookie standings.

[13] He had a consistent year compared to his rivals, scoring points in all but six races, as he finished a respectable fifth place in his rookie season of car-racing.

[14] He later announced that he would be competing in one round of the 2024 F4 British Championship at Zandvoort with Hitech Pulse-Eight.