He worked as a caddy in Buenos Aires, before turning professional in 1986. He competed on the Challenge Tour in 1991, with a best of two second place finishes, the Ramlösa Open and the Jede Hot Cup, both held in Sweden. He competed on the European Tour from 1993 to 1995, and had two top ten finishes, coming 9th in both the 1994 Tenerife Open and the 1995 Madeira Island Open.
Alvarez represented Argentina on one occasion in the World Cup, in 1991 in Italy, and was 3rd in an individual tournament.
He was second in the San Pablo Open (Brazil) in 1990. Alvarez died of cancer in 2014.
Argentine wins (18) 1991 Pinamar Open, South Open, Acantilados Grand Prix, Norpatagonico Open, Praderas Grand Prix Other wins (1) World Cup: 1991.