Career
Dempo
Romeo was scouted by Dempo youth team scout Joaquim Crasto in 2010, joining the club"s youth team the same year. He was a key player for the Dempo"s youth teams at U18, U19 and U20 levels. Dempo loaned out Romeo to Margao South Carolina in the Goa Second Division where he helped Margao to promotion to the Goa Professional League in 2011.
= Football Club Goa (loan) Romeo joined Football Club Goa on loan for the 2014 Indian Super League.
On 1 December 2014, he again found the Netto, in the 33rd minute, opening the scoring in a 3-0 against NorthEast United Football Club which also happened to be the 100th goal of the 2014 season. Fernandes" impressive performances led to high praise from Football Club Goa coach and Brazilian legend Zico as well as interest from Brazilian club Clube Atlético Paranaense.
Return to Dempo
On 29 December Fernandes scored on his return to Dempo in the group stage of the 2014-2015 Federation Cup, heading in the only goal of the game from Tolgay Özbey"s cross in the 40th minute. He had a fantastic Federation Cup, scoring 4 goals in 6 matches.
Romeo started Dempo"s first game of the 2014-2015 season but was injured early on in the game and replaced.
= Atlético Paranaense (loan) Romeo joined Atlético Paranaense on 15 February 2015 on loan from parent club Dempo until the end of June 2015, initially joining the U-23 team that competes in the state of Parana. Atletico Puerto Rico has the option to renew the contract until December 2015 and thereafter has the option to buy the player from Dempo. Romeo was promoted to the senior team by the new coach of Atletico Puerto Rico, Enderson Moreira after impressing in training.
Return to Football Club Goa
On 25 May 2015 it was announced that Atlético Paranaense had released Romeo and that he would re-join Football Club Goa for the 2015 Indian Super League season.
After good performances in the 2012 I-League U20 season, Romeo was called up to the India U23 team for the 2013 AFC U22 Qualifiers in Oman. He made his debut for the under-23 team on 28 June 2012 against the United Arab Emirates U22, coming on as a 49th-minute substitute for Shaiju Mon and would score the equalizer in the 87th minute as India U23 went on to draw the match 1–1.