He worked for the Jordanian Ministry of Public Works as a design architect, and then joined the firm Dar Al-Handasah Consulting Engineers at their headquarter offices in Beirut. In 1968, he established a private practice in Beirut, and in 1973, formed the partnership Rais and Tukan Architects, which was later changed to Jafar Tukan and Partners Architects and Engineers and relocated to Amman.More