4th Officer (Четвертый помощник) / AB Seaman (Квалифицированный матрос) / Junior officer (Младший офицер) / OS (Вахтенный матрос) / Seamen (Матрос) / Third Officer (Третий помощник)

El. Eng. Assistant, Electrician, Electrotechnical rating

4th Engineer, Wiper, Officer in charge of an engineering watch in a manned engine-room or as designated duty engineer in a periodically unmanned engine-room on ships powered by main propulsion machinery of 750 kW propulsion power or more, Motorman

Chief Engineer, Chief engineer officer on ships powered by main propulsion machinery of 3,000 kW propulsion power or more