Stachowitsch was professionally active in the field of telecommunications engineering, in the automobile industry and as an officer in the Austrian army. In 1935, he acquired Austrian citizenship and was called into the Austrian "Olympiakader". He became the Salzburg youth champion in running in 1935 and 1936. In 1937 Stachowitsch graduated and began a radio electronics course, while he was an officer candidate in the "Wiener Heerestelegraphenabteilung". With the Anschluss of Austria to the German Reich in 1938, he attended the Kriegsschule of the Wehrmacht in Hanover, where he took his officer's examination and became a lieutenant in 1939. During World War II he served in the army press service on the western front, later in the Army Group South on the eastern front. After the war he became a master radio mechanic in 1947 and worked in a workshop in Salzburg. After leaving the Werkschulheim Felbertal school management in 1958, he joined Simca in manufacturing. Due to different objectives, he ended his collaboration with the Balduinstein educational institution in 1989. In 1991 he worked briefly as delegation leader for Russian aid of the Red Cross; in the same year he was appointed honorary colonel of the Siberian Cossacks. On 1 April 2013 he died in Limburg an der Lahn and was buried in the family grave at the municipal cemetery in Salzburg.