Most Holy Synod
Up until the year 1917, he worked in the central apparatus of the Most Holy Synod. At the same time, during 1912–1917, he lectured in history at the St.Petersburg's Realschule of A.I.Gelda. Upon receiving the first news of the revolution, Volodymyr Barvinok immediately returned to Kiev, where he was deeply involved in the renewal of Ukrainian independence.