 Eduard Hartmann is known primarily for his membership at the HK Dukla Trenčín, with which he won the 1993–94 season championship title.He played for HK Dukla Trenčín from 1986 to 1994 with the exception of the 1991–92 season when he was at the HC Kometa Brno.After one season with the German Eisbären Berlin in the 1994–95 season, Hartmann returned to his home club.