By 1999 Vargas established himself as the symbol and most prominent member of the club appearing in 38 matches and netting three goals.
After his negative experience with Empoli, Vargas signed with A.S Livorno, where he recaptured the form that made him a standout for Reggina.
After his successful Serie A career, Vargas signed on with top Austrian club Red Bull Salzburg for the 2006–07 season.
[4] After leaving Vigor Lamezia by the end of the season, on 30 June 2022 he was unveiled as the new head coach of Serie C club Pro Patria.
Vargas has represented Chile 52 times, scoring a lone goal versus Uruguay from the penalty spot.