Born in Sofia, the son of a Bulgarian mother and a Sudanese father, Mishaui has played for a number of professional teams in the country, including Balkan Botevgrad, Botev Plovdiv, Belasitsa, Iskar, Conegliano German, Football Club Bankya, and Vitosha Bistritsa.
He also had a spell in Greece. Not having appeared for Bulgarian national sides, in 2004 he received an offer to represent the national team of Sudan, but eventually this did not materialize. He was the manager of Vitosha Bistritsa for more than 7 years, leading them to their first ever promotion to the second tier of Bulgarian football, also at one point coaching Bulgarian Prime Minister Boyko Borisov.
In March 2014, Nikolay Todorov replaced Mishaui at the helm of the "Bistritsa tigers".
