Jailton Jesus Almeida Júnior[3] (born 28 June 1991) is a Brazilian professional mixed martial artist.

Almeida's first dream was to be a football player, but his family's finances became an obstacle after he was required to acquire $10,000 real to join a club.

He ended up following his father's footsteps into fighting, beginning by training boxing at the age of six, and starting Brazilian jiu-jitsu at 11.

Financial difficulties also imposed themselves in martial arts, leading Almeida to work as a doorman and guard while his dream of being a fighter was put on hold.

[5][6] To start his professional mixed martial arts career, Almeida racked a 13–2 record in Brazilian regional circuit.

After claiming the Thunder Fight title, Almeida was invited to face Nasrudin Nasrudinov at Dana White's Contender Series 39 on September 14, 2021.

[7] Almeida was scheduled to make his promotional debut against Danilo Marques on November 13, 2021, at UFC Fight Night 197.

[10] As his sophomore appearance in the organization, Almeida was scheduled to face Maxim Grishin on May 21, 2022, at UFC Fight Night 206.

[14] However, Abdurakhimov was forced to withdraw due to visa issues and was replaced by Anton Turkalj at a catchweight of 220 pounds.