Jerzy Jurczyński — a coordinator of humanitarian aid for Ukraine provided by the Polish largest charity portal Siepomaga.pl, which has effectively brought together the donors and the people in need for over 10 years. He has been staying in eastern Ukraine for over two months.

He is a volunteer in a high-altitude rescue unit of the fire brigade in Kharkiv. He has joined the Siepomaga.pl Foundation team in 2020. He is an experienced specialist in public relations and public affairs.