Career
From 1920 she lived in the Soviet Union, in Moscow where she worked as a teacher. In 1922 Sofia worked in the School of Rosa Luxemburg in Moscow, later, 1923-1924 at the Communist University of the National Minorities of the West. After that worked in the Polish Bureau of the Communist Party of the Soviet Union.
In 1939-1943 Sofia worked at the Executive Committee of Communist International.
In 1969, her memoirs "Lata wielkich bojów: wspomnienia" were published in Poland by Książka i Wiedza publishing house.