She also holds the FIDE Trainer title, acquired after successful examination at the FIDE Seminar for Coaches in Vung Tau, Vietnam on 29.10.2008. Fierro has been Ecuador"s strongest female chess player for many years, and has represented Ecuador in ten biennial Chess Olympiads from 1994 to 2012. In 1998 she played in the open section (with both male and female players), while in the other editions she took part in the women"s tournament.
She is a frequent visitor to the United States and has a second home in Charlotte, North Carolina.
Today she lives with her mother in Ecuador, and in addition to her professional chess competition, Fierro has worked as a chess journalist. Fierro is the Secretary for the FIDE Commission for Women"s Chess (WOM).