The six feet two inch tall striker has signed a one year deal with the Goan club for the 2012-2013 season.
"Angel is a tall player with good physical presence and competent skills and he will give us lot of options as a striker," said Salgaocar coach Karim Bencherifa.
Guirado was born to a Filipina mother in Malaga, Spain.
Owing to his ancestry, he has represented the Philippines at international level several times, the most recent being in the AFC Challenge Cup held at Kathmandu, Nepal in March 2012 where he scored two goals in the tournament.
Guirado started his career with Malaga FC Juniors in 1997 and progressed to play with Athletico Mardrid (2005-06) and Deprotivo de la Coruna (2006-07).
After having featured with Spanish second and third division teams he made his move to Global FC, Philippines in 2011.