Fernandes played for Sirlim Sports Club in Goa as a seven-year-old. In 2012, he was drafted into Sporting Goa's youth development program. In 2018, he was part of their youth team in All India Football Federation's U-18 Youth League, in the Goa Zone. Fernandes was a student at the Rosary Higher Secondary School, Navelim, during this time. In January that year, he earned the Reliance Foundation Youth Sports scholarship, the only Goan among 19 others.[3][4] Fernandes played as an attacking midfielder for his team. A 2018 report stated: "There are times when he moves way forward and times when he falls back. When he is up, he is quick to take shots at goals and has shown his penchant to shoot from out of the box often."[4]
Sporting Goa
Starting 2018, Fernandes played for Sporting Goa Reserves competing in the Goa Football League.[5][6][7] In 2019, he captained Sporting Goa's under-20 side to the final of the Goa Football Association's (GFA) U-20 Taca Goa tournament, where they lost to Goan FC.[8] After a loan stint with Bengaluru United in 2021 to compete in the I-League qualifiers,[9] he returned to SC Goa the same year.
Churchill Brothers
In September 2023, Fernandes' signing was announced by Churchill Brothers, that competed in the I-League.[10] Playing in its 2023–24 season, he scored his first goal for the club in a 4–1 win at home against NEROCA on 10 December.[11] On 4 March 2024, he scored the opening goal against Shillong Lajong in a 2–1 victory.[12]