In Manchuria Ivan turned to his expertise in music and choir direction. He organized, trained, and conducted a male choir that toured China, drawing large audiences. His choir work achieved notable prominence within China as well as abroad. From 1921 to 1936, he also was the choir director of the Church of St. Aleksei in the Mojiagou suburb of the Harbin. From 1936 to 1940, Ivan held the position of choir director of the Church of St. Nicholas in Shanghai, China.
Having attained a reputation of leading fine church choirs, Ivan was invited to the United States to conduct the choir at the Holy Trinity Cathedral in San Francisco. He remained at the Cathedral from 1940 to 1962. In addition to his church duties, Ivan formed and directed a Russian male choir that appeared at performances through out California.
After 1962, he retired, remaining in the San Francisco area until his repose in April 1967.