The 28-year-old hails from Ubatuba in Brazil and will be fighting Australian Kian “Karnage” Pham in his first professional MMA fight at the Istora Senayan next Friday.
Barros' bout will be one of three flyweight matches scheduled for the night, one of which will also be the headliner between Japanese veteran Shinichi Kojima and American expat Andrew Leone.
Kojima had earlier been scheduled to fight long-time rival Yasuhiro Urushitani for the Flyweight World Championship but an injury forced One FC to change their plans and bring the Phuket Top Team fighter into the picture. Nevertheless, Barros is hoping that One FC have not shelved their plans to unearth a flyweight champion with stablemate Alex Silva also said to be in contention.
Moreover, Barros will be joined by Malaysia's Raymond Tan and Indonesia's Brianata Rosadhi in carrying out their One FC debuts in Jakarta and all three fighters will hope to make a splash in the 125lbs-division during their respective fights next week.
"I think there are a lot of tough guys and I think we should have a flyweight champion by the end of the year," Barros told FOX Sports when asked on his thoughts on the burgeoning One FC division.
"It would be pretty great to have someone who is top of the division and who we can look up to."
"Alex is looking to fight a couple more times with One FC, but maybe it might be next year.
"The main event [in Jakarta] has two high-level [flyweight] fighters and it will great to see them perform as well.
"Leone is a good wrestler and the Japanese guy is good at BJJ as well."
Barros appeared quite relaxed ahead of his professional debut and credited Leandro Issa as being instrumental in his training efforts. Issa, who fights at featherweight, has maintained a decade-long friendship with Barros and the duo have constantly supported one another through all their endeavours.
"Issa is great, I live with him, study with him and he's always been there all my life," Barros continued.
"He always gives me a lot of details to help me out and it's great to have him on my team, he's my best friend.
"The other guys are also really helpful. Actually, I'm more worried about fighting the guys in my gym than my opponent!
"I have been working a lot on my wrestling and stand-up and I'm trying to push myself. I'm trying to be more faster because at flyweight, the guys [in the division] are really fast.
"I have been waiting for so long all my life, especially since 2009 [when he joined Evolve] for this opportunity.
"The last two years, I've been concentrating on showing more seriousness and I've helped the guys in the fight team like Shinya Aoki, Leandro, Eddie Ng... even if I didn't know much.
"Everytime I helped, I learnt more about what I can do myself. And earlier in the year, I was told to do serious competition training because they thought I was ready.
"I can't wait to fight and I think I'm going to like it. I will hope to be fighting for a long time!
Barros also trains boys and girls from the ages of 6 to 13 in Evolve's 'Little Samurai' programme and holds a black belt in Brazilian jiu-jitsu.