Career
He currently plays for Universitario de Sucre in Bolivia. Melgar started out at second division club Deportivo Cooper. In 2005, he made his flight top debut with Aurora.
In that season, he played in 7 games scoring one goal.
The following year he transferred to hometown club Oriente Petrolero, but his appearances during this period were limited as he spent most of the time on the bench. In 2007, he went abroad to play for Venezuelan side Carabobo Football Club, but shortly after he returned to Oriente where he stayed for the remaining of that year.
Subsequently Bolívar signed him for the 2008 season, but the slim opportunities he was given to exposed himself on the field discouraged his continuance in the club In 2009, he returned to Venezuela and joined Deportivo Anzoátegui.
He is the eldest son of legendary Bolivian midfielder José Milton Melgar, who played for the Bolivian national team in the 1994.