Nélio scored three times for Haladás during the 2000–01 Hungarian National Championship I.
[1][2] He then returned to Brazil to play for Botafogo (SP) in August 2001.
[4] He played in the 2002 Copa do Brasil and the 2002 Campeonato do Nordeste, scoring in the latter competition.
[7] Nélio played twice for Haladás during the 2003–04 Hungarian National Championship I.
[8][9] Nélio's brothers Nildeson and Gilberto were also footballers, and represented El Salvador and Brazil respectively.