Complex sentence: In 1944 he worked as writer, editor and broadcaster for the Wartime information Board in Ottawa and as senior producer of the German-language section at CBC's International Service until 1946.
Split into simpler sentences: In 1944 he worked as writer, editor, and broadcaster for the Wartime information Board in Ottawa. He was a senior producer of the German-language section at the Canadian Broadcasting Centre's International Service until 1946.