He currently holds a senior partner position at Lavery, de Billy,[5] a legal practice in Quebec that employs over 175 attorneys.

He has served as the leader of the international observation mission of the UWC at the country's parliamentary and presidential elections in 2019.

[6] Czolij joined the board of directors of the Ukrainian-Canadian credit union Caisse populaire Desjardins Ukrainienne de Montréal in 2004 and served as its president from 2006 to 2019.

[5] Fédération des caisses Desjardins du Québec, has welcomed him as a member of its East of Montreal Community Collaboration Group since 2018.

[3][7] The Advisory Board of the Honorary Consulate of Ukraine in Montreal was established by him to offer guidance and support while he carried out his duties.