Career
Born in Berlin, Sredzki was a lathe operator and in 1918, he joined the Independent Social Democratic Party of Germany (USPD). In 1920, he joined the Communist Party of Germany (KPD). After Adolf Hitler and the Nazis seized power in Germany, Sredzki was active in the resistance struggle.
He was detained several times in 1933 and 1934.
On 7 December 1934, he was arrested by the Gestapo, and on 9 June 1936, he was sentenced by the Berlin Superior Court (Kammergericht) to five years in labour prison (Zuchthaus). After his sentence ended in 1939, Sredzki was taken to Sachsenhausen concentration camp and held there.
In 1944, together with 26 other German and French antifascists, he was murdered by the Steamship