 During the World War II he worked in German Technical Translator in Construction Management.The following years, 1944-1950, he was the head of the Department of interior design of the Estonian SSR, in 1946 he was a professor and from year 1950 he was lecturer at the Department of Architecture.In 1945, Kuusik joined the ENSV Architects' Union, but at the beginning of the 1950s he was removed from the list because of his past.