Marinebrigade Ehrhardt
After being released Schniewind continued to serve in the Marinebrigade Ehrhardt and later the Reichsmarine. From 1925 to 1926 he served as adjutant to the Minister of War Otto Gessler. In 1932 Schniewind became captain of the light cruiser "Köln". In 1934 Schniewind was appointed to another staff function. He was promoted to Konteradmiral (rear admiral) in 1937 and to Vizeadmiral (vice admiral) in 1940.