Kobierski's parents were Poles who emigrated to Germany from Poznań.

[1] Between 1931 and 1941, he played 26 times and scored 9 goals for the Germany national football team.

[2] He participated in the 1934 FIFA World Cup, and scored Germany's first ever World Cup goal, in the first round 5–2 win over Belgium.

In autumn 1941 he was delegated to the sports club of the SS and German police in occupied Warsaw.

This biographical article related to association football in Germany, about a forward born in the 1910s, is a stub.