After graduating from Eckerd, King spent the 2008–09 season as the assistant men's basketball coach at
Vassar College. As a graduate assistant, King assisted the coaching staff with day-to-day operations while earning a master's degree in adult technical education. In August 2016, King joined the
New Hampshire Wildcats men's basketball team as an assistant coach. He served in the role for three seasons. In July 2021, King was named head coach of Czech club
USK Praha. In June 2022, King returned to Riesen Ludwigsburg as the newly appointed head coach. and the quarter-finals in the 2023–24 season. In May 2024, King parted ways with Ludwigsburg He coached two games for Darüşşafaka to start the
2024–25 Turkish League season before parting ways in a mutual agreement after he accepted a new coaching role in Australia. On October 22, 2024, King was appointed head coach of the
South East Melbourne Phoenix of the Australian
National Basketball League (NBL) for two seasons. He joined the team midway through the
2024–25 NBL season after they started the season with a 0–5 record. In his first game as coach on November 1, the Phoenix defeated the
Tasmania JackJumpers 79–77. He went on to guide the Phoenix to fourth place on the ladder with a 16–13 record. He subsequently finished runner-up for
NBL Coach of the Year. In the semi-finals, the Phoenix lost 2–1 to the
Illawarra Hawks. On May 9, 2025, King was appointed head coach of
Mets de Guaynabo of the
Baloncesto Superior Nacional for the rest of the
2025 season, replacing
J. J. Barea. In the
2025–26 NBL season, King helped the Phoenix become a contender and by early February 2026 was considered a leading candidate for the Coach of the Year award. ==Personal life==