Isiah Quintero is in his first season as an assistant men's basketball coach at Willamette University in 2022-23. Quintero assists with all aspects of the basketball program.

Prior to arriving at Willamette, Quintero was an assistant coach at Linfield University in McMinnville, Oregon, for the 2021-22 and 2022-23 seasons. He helped Linfield earn part of a three-way tie for the 2021-22 Northwest Conference regular season championship.

Quintero attending nearby Corban University, where he played basketball and contributed to the Warriors winning the Cascade Collegiate Conference spring title with a 10-2 CCC during the COVID-shortened 2020-21 season. He graduated from Corban in 2021 with a Bachelor of Science degree and a major in Forensic Psychology.

At Antelope High School in California, Quintero helped the boys' basketball team when four conference championships. In addition, Antelope won San Joaquin Sectional Championships in 2011-12 and 2012-13. In 2013, Quintero was named the Most Valuable Player of the Section Championship Game and led California in blocked shots during the State Playoffs. Quintero and his wife Courtney have one son, Zion.