Born in Vinhedo but raised in Louveira, both in the São Paulo state, Belli began his career as a fitness coach in the youth sides of Santos. In 2010, he spent a short period as an assistant of Fernando Diniz at Paulista, before spending the following year back in his hometown working in a social project sponsored by Umbro.
In November 2012, Belli was named the under-20 manager of Guaçuano. The following February, he took over the under-20 side of Rio Branco-SP, before moving to Portugal in July and spending a period in the youth sides of Académica de Coimbra.
In August 2014, Belli was named manager of the under-19 side of Sport Lisboa e Marinha.[2] He returned to his home country in 2016, and took over the under-20s of Atibaia in November of that year.[3]
Belli returned to Paulista in March 2017, now as manager of the under-20 team. He then worked as an assistant manager at Betinense [pt] and Villa Nova, before joining the women's team of Palmeiras, initially for the under-18 team.
On 24 July 2019, Belli was named manager of the women's team of Verdão.[4] He departed the club on 9 November 2021,[5] and later returned to men's football after being in charge of the under-20 side of Ituano.
Belli returned to Palmeiras and its women's team on 16 July 2022.[6]
