Mümin Kahveci has started his career as an engineer. He also continued his career as a lecturer in universities in Turkey, the UK and the USA between 1989 and 1996. He worked in Ankara Metro between 1995 and 2000. After that, he started to work in Istanbul Ulasim AS as deputy managing-director. He took part in many railway system projects both in Ankara and Istanbul. He also took charge in integration and redesign of fare collection system of Istanbul. He worked in IETT as deputy managing director between 2009 and 2014. He is appointed as the general manager of IETT in 2014.