Born in Marialva, Paraná, Rômulo joined Athletico Paranaense's youth setup in 2018, on loan from Maringá.

[2] Rômulo made his first team – and Série A – debut on 16 November 2021, coming on as a second-half substitute for Pedro Rocha in a 0–1 home loss against Atlético Mineiro.

[3] He scored his first senior goal on 23 January 2022, netting a last-minute winner in a 1–0 Campeonato Paranaense home win over Paraná.

[4] On 7 February 2024, Rômulo joined Göztepe in Turkey on loan with an option to buy.

[5] On 10 August 2024, he made his professional debut with Göztepe in a Süper Lig match against Antalyaspor, he played 90 mins in a tie 0-0.