Third Officer (Третий помощник)

4th Officer, Junior officer, Officer in charge of a navigational watch on ships of 500 gross tonnage or more, Officer on watch (OOW), Third Officer

Officer in charge of a navigational watch on ships of 500 gross tonnage or more, Officer on watch (OOW), Second Officer, Third Officer, Chief mate on ships of 3,000 gross tonnage or more

Third Officer, Junior officer