

Originally from Ribeirao Preto, SP, Brazil, Siqueira was recruited to play collegiate volleyball in the United States by Western Nebraska Community College (WNCC) in Scottsbluff. During her years there, the WNCC Cougars placed 4th in the nation in 2000 and 3rd in the nation in 2001. Siqueira was named All-Region and received an Academic All-American Award in 2002 after earning her Associates Degree in Physical Education from WNCC.
In the fall of 2002 Siqueira transferred to the University of Mary (UM) in Bismarck, North Dakota to play for the Marauders. She helped the team to a national top 10 ranking for the first time in the school's history. That same year the team won their conference and took second in their region. At UM Siqueira was named All-Conference, All-Region and All-American. She received her Bachelor's Degree in Physical Education with a minor in coaching in 2005, then went on to become a Graduate Assistant Coach at UM.
Flavia was hired as Head Volleyball Coach at the College of the Southwest in Hobbs, New Mexico in the fall of 2007. She took her CSW Mustangs to a third place finish in the Red River Conference and they were ranked in the top 10 in their region. She obtained her Masters Degree in College Teaching from UM.