He was a student of Václav Hanuš on VSUP in Prague. He started to work in Inwald glassworks, where a center for pressed glass was established. Rudolf Schröter and his classmate Václav Hanuš also worked in the company. In this era young artist started to apply and successfully promoted new designs of pressed glass.

Jíří Zejmon is talented designer of pressed glass and one of the first designers, who promoted new approach of pressed glass.

Since 1960 he is the lead artist of department of pressed glass in Skloexport.