He grew up two blocks from Cerro's Estadio Luis Tróccoli and began playing football at age five.
[1] In Cerro's youth team, Nandín scored twice in a 2–2 comeback draw against Nacional, as well as goals against Peñarol, Liverpool Montevideo and Defensor Sporting.
He signed his first professional contract in July 2020 and received his first-team debut on 7 February 2021 in a 2–0 home win over Progreso, playing the final eight minutes as a substitute for Maicol Cabrera.
On 29 March, he broke his fifth metatarsal in a 1–1 draw with Montevideo Wanderers on the final day of the season as his team were relegated; he recovered three months later.
After missing the playoffs in the Uruguayan Segunda División that season, the team were promoted in 2022, with Nandín assisting the only goal by Emiliano Sosa in the playoff final against local rivals Rampla Juniors, allowing their team to be back in the Uruguayan Primera División for their centenary.