He was born in Kristiania (now Oslo, Norway). He was the son of Otto Benjamin Andreas Aubert (1841–98) and Hilda Thaulow (1846–1923).He studied engineering, with specialization in chemistry. He first studied at the Oslo Technical College. He studied engineering at the University of Berlin and earned a doctorate in chemistry at the University of Basel in 1895.
He became the managing director of Engene Dynamitfabrik and Norsk Sprængstofindustri. In 1926 he was hired as Director-General (CEO) of Norsk Hydro. Aubert retired as Hydro president in late 1941, but took over as the company's chairman and held this position until his death in 1943. Aubert emphasized the scientific and technological research. He was a member of the Executive Board of the Norwegian Industry Association from 1926 to 1934. Aubert was appointed Knight of the 1st Class of the Norwegian Order of St. Olav in 1928. He also held the Belgium Order of Leopold, the French Legion of Honour, the Danish Order of the Dannebrog and the Polish Order of Polonia Restituta. 
|Director General of Norsk Hydro
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