Ali Karahan was born in 1966, Gümüşhane. He graduated from Istanbul Technical University as a mechanical engineer in 1988. He started his career as a self employed engineer and worked as a project engineer between 1986 and 1989. Between 1989 and 1995, he worked as a R&D Engineer, Production-Service Manager and administrator in various import - export units in heavy construction equipment and construction areas. He participated in a 6 months education in Fire Brigade School (İBİTEM) at the Department of Fire Brigade of Istanbul Metropolitan Municipality, and started to work as a Fire Brigade member. Karahan specified the maintenance, repairment and technical specifications of the Fire Brigade equipment and vehicles  between 1996 and 1999. In 1999 he was assigned as Deputy Technical Director. During this duty, he also administrated all the vehicles-equipment, storage and purchasing activities of all the directorates and units belonging to the Department of Fire Brigade. During his duty as the Deputy Director, he also served as a Center Fire Brigade Deputy Director, periodically. Currently he works as a teacher at the Department of Fire Brigade-Fire Brigade School and Istanbul University-Fire Brigade College. Karahan follows any kind of fair organizations related to his job closely both in Turkey and abroad. He also participates in sports and social activities. He speaks intermediate level English. Karahan is married with 2 children.