 Neira began his career, aged seventeen, at Primera División Chilena club Colo-Colo before moving to the Brazilian club São Paulo FC in 1994, after a notable performance at the 1993 FIFA U-17 World Championships.In the next season, Neira return to Colo-Colo, but in 1996 Neira was loaned to Everton de Viña del Mar of the Primera B in this time.From 1997 to 1998, Neira was consolidated as player in Colo-Colo, winning the Primera División Chilena title in two consecutive occasions, the 1997 and 1998 season.