Muminović started his career with his hometown club Sloboda Tuzla, with whom he signed his first professional contract in October 2014.
[1] He made his professional debut in a cup game against Željezničar on 13 April 2016, days before his 19th birthday.
[3] In July 2018, during a pre-season training, Muminović tore an anterior cruciate ligament of his right knee, which required a surgery and ruled him out for at least six months.
[5] In June 2019, Muminović signed a four-year contract with Tuzla City for a €25,000 transfer fee.
[6] He made his official debut for Tuzla City on 20 July 2019, in a 1–5 away league win against Zvijezda 09.