Born in Nairobi, Maker grew up in Perth, Western Australia, before playing high school basketball in North America.

Maker was born in Nairobi, Kenya, to South Sudanese parents and immigrated to Perth, Western Australia, when he was one year old.

[2] In 2015, Maker moved to the United States and enrolled for his freshman year at Chaminade College Preparatory School in West Hills, Los Angeles.

His cousins also brought him under the guidance of Ed Smith, a coach who had helped direct them through their own basketball careers.

[6] Maker joined the basketball team with Matur and played in the National Preparatory Association and The Grind Session.

[11] Instead of seeking a waiver from the California Interscholastic Federation to continue playing for Orange Lutheran, he transferred to Pacific Academy, a prep school in Irvine, California, and continued his career with the affiliated program, Center of International Basketball Academy.

[15] On 3 July 2020, he committed to play college basketball for Howard over offers from UCLA, Kentucky and Memphis.

[16] Sources: After playing in Howard's first two games, Maker was ruled out indefinitely on 28 November 2020, due to a groin injury suffered in preseason practice.

[17] On 21 August 2021, Maker signed with the Sydney Kings of the National Basketball League (NBL) on a Next Stars contract.