Rudolf Höss
Höss was assigned to the Dachau concentration camp in December 1934.  There, he where he held the post of Blockführer ("Block Leader"), meaning he was in charge of one barracks of prisoners.  In 1938, Höss was promoted to SS-Hauptsturmführer (Captain), and was made an assistant to Hermann Baranowski in the Sachsenhausen concentration camp.