[5] He made his debut for the first-team of Mohun Bagan not long after signing on 10 August in their Calcutta Football League opener against George Telegraph.
[6] He then made his professional debut for the club in the I-League on 13 January 2017 against Shillong Lajong.
[7] In June 2022, Fernandes moved to Odisha on loan from fellow Indian Super League club Mumbai City.
[8] On 17 August, he made his debut for the club against NorthEast United in the Durand Cup, in a thumping 6–0 win.
[9][10] On 5 June 2019, he made his senior international debut for India in a 3–1 defeat against Curaçao at the 2019 King's Cup in Thailand.