3rd engineer Bosun / AB / HLO Captain / Master / OIM / Barge Master Catering / Chief Steward / Chief Cook / Cook / Steward / Mess boy / Laundry man Chief engineer / TSL / ATSL Chief Mate / Chief officer / SDPO / MSL Crane operator / Deck pusher Derrickman / Derrickhand Driller Electrician ERO / 2nd engineer ET Full crew Full rig crew Medic Oiler / Motorman / Pumpman / Welder Radio Operator Rig Manager / ARM Rig welder Rigger / Roustabout / Roughneck Safety Officer SDPO / DPO / ADPO Store keeper / Material coordinator Subsea engineer