John Moskalyk's earliest roles were as secretary for Club 620 at St. Vladimir Institute and on parish council at St. Demetrius UOC, where he still serves today. He has been vice-president for governmental relations of CUCC; co-founder of Euromaidan Canada; financial secretary for Dopomoha Ukraini; trustee for the Eastern Eparchy of the UOC; board member of UNF Toronto Branch. He is national secretary, UNF of Canada; secretary, Ukrainian Catholic Education Foundation; and board member of Help Us Help; Toronto Culture Festival; UNF Toronto West; and UNF Ridna Shkola.