 During the time of the Estonian SSR he worked at the SDI Eesti Kommunaalprojekt (1960-1963), the SDI Eesti Projekt (1963-1973 and 1978-1990) and the SDI Eesti Tööstusprojekt (1975-1978).After the fall of the Soviet Union, during the period when the economy and construction again recovered, Raine Karp founded his one-man architectural office in 1996.Raine Karp created some of the boldest examples of 1960s–1980s modernism in Estonia.