Widely seen as the first Soviet government, the Council of People’s Commissars was formed in 1917 and comprised 16 leaders, including chairman Vladimir Lenin, foreign affairs chief Leon Trotsky and Joseph Stalin, who was in charge of the People’s Commissariat of Nationalities.

https://www.timesofisrael.com/putin-first-soviet-government-was-mostly-jewish/

Haven't looked in depth at those sixteen. My impression is that the Jews on it are much less than a majority though.