 After the war, Jean Chrissoveloni, a Bucharest banker, tasked Irimescu with organizing the Chrissoveloni Bank in New York City.He ran the bank from 1921 to 1928, successfully closing the branch because he sensed a financial crisis coming and because operating a foreign bank tended to be unprofitable because more burdensome business regulations were placed on such institutions.At the time, it was the only Romanian banking institution in the United States.