[3] Everson subsequently joined Guará permanently, but spent the vast majority of his spell as a backup to Jailson and Saulo.

[7] He became a regular starter from the following campaign, being an important unit as his side achieved promotion to the Série A. Everson made his top tier debut on 15 April 2018, starting in a 2–0 away loss against Santos.

He made his debut for the club on 9 February, keeping a clean sheet in a 1–0 Campeonato Paulista home defeat of Mirassol.

He ended the season as a starter, appearing in 32 league matches and overtaking longtime incumbent Vanderlei (who subsequently left for Grêmio).

[16] On 27 August 2021, Everson received his first call up to the Brazil national team ahead of 2022 FIFA World Cup qualifiers.