From 1920 to 1923, he worked at the State Political Directorate and completed his legal education in Kyiv, where he met Bella Bronevaya, a student in the economics department.

In 1928, before the birth of his son, Solomon got a job in the Kyiv District economic department of the Prosecutor General's Office, with the help of his elder brother Alexander Iosifovich Bronevoy.

In 1933 he was awarded the Order of the Red Star, and in 1934, he was appointed director of the sixth Department in the USSR's People's Commissariat for Internal Affairs (NKVD).

[4] In 1941, the family was allowed to return to Kyiv, but due to World War II, they were evacuated to the city of Chimkent, Kazakh SSR, where Leonid Bronevoy attended high school and began to work independently.

Bronevoy achieved star status in the USSR after playing the role of Heinrich Müller in the TV series Seventeen Moments of Spring.

Despite lacking a physical resemblance to the historical chief of Gestapo, his portrayal became iconic due to his natural charisma and sense of humor.