Born March 31, 1989, in Tubarão, Santa Catarina, Brazil, Thaynan Mariano holds a degree in mechatronics and works as consultant in strategic marketing and gamification at his own company. He resides in Florianópolis, Santa Catarina, Brazil.
Thaynan co-founded JCI Florianópolis in 2011. He became Local President in 2011 and National President in 2020.
He has attended two JCI Area Conferences and four JCI World Congresses. He speaks English and Portuguese.