Career
Important posts include:
chairman of the Main Concession Committee (1927–1929)
chairman of the Supreme Technical Council of the Peoples" Commissariat of Communications (1931)
In 1938 he was arrested and placed in Gulag labor camps, later sentenced again in 1941. The sentence quoted "overspending of one million 120 thousand roubles". Since he was in put charge of construction works due to his expertise, it was suggested that he overestimated the amount of work done by the gulag inmates, thus probably saving many lives.