Heron made his first team debut for the Esmeraldino on 14 August 2019, starting in a 0–0 away draw against Brasiliense for the year's Copa Verde.[2] Definitely promoted to the main squad for the 2020 season, he made his Série A debut on 12 August of that year by starting in a 1–2 away loss against Athletico Paranaense.[3]