Emersonn progressed through the academy of
Athletico Paranaense, with his standout season coming in 2021, where he started the campaign with eight goals in only four games. In June of the same year, he signed his first professional contract with the club, a three-year deal. The following month, he was called up to the first team to cover for the injured
Matheus Babi, but did not feature in any games. In October 2022, he suffered a tear of his cruciate ligaments, which ruled him out until the second half of the 2023 season. In January 2025, Emersonn joined Turkish side
Göztepe. Later that year, on 28 April, he netted his first goal in a 4–1 win over
İstanbul Başakşehir. On 1 September 2025, Emersonn signed with
Toulouse in French
Ligue 1. A month later, on 5 October, he scored his first goals for the club by netting a brace in a 2–1 away win over
Lyon. ==International career==