A native of Westwood, New Jersey, Sean attended Bonner Springs High School where he played basketball. After graduating from Bonner Springs, Birdsong played college basketball at Highland Community College, and NCAA Lincoln University. He would go on to play professionally in the Continental Basketball Association (CBA) with the Atlanta Wolverines, and the Premier Basketball League (PBL) with the Beltway Bombers.
After playing, Birdsong began developing players through various youth camps in the NBA circuit including the Dallas Mavericks Basketball Academy. Birdsong has also assisted the NBA Development League combine, and the Dallas Mavericks NBA G league affiliate Texas Legends organization, coaching and developing future NBA prospects.
In addition to working in basketball, Birdsong has worked with at risk youth, and adults in the behavioral healthcare field. In 2014, he founded Nothing But Net Sports LLC which programs promote a healthy living through sports for youth, and adults. Birdsong earned a Bachelors degree in Organizational Leadership from MidAmerica Nazarene University.