 From 1932 to 1945 he was a teacher at the Gymnasiums in Colmar, Reims, Strasbourg and Paris.From 1932 until 1934 he worked at the Institut francais in Berlin and in the Bavarian Archives.In 1945 Dolliner became professor of Alsatian history at the University of Strasbourg and became leader of the "Institut des hautes études alsaciennes".