seaman or woman job

Who is a seaman or woman and what do they do? A seaman or woman (or (merchant navy) deck rating) works on board sea-going ships, either in the engine room, on deck or in the galley (the ship’s kitchen).
What are the activities of the seaman or woman job? The work depends on where they are located on board ship, but is predominantly manual and maintenance work. An engineering rating will have more work to do that relates to the operation of the engines and other mechanical parts of the ship, while the catering rating will be employed particularly in preparing and serving food to other crew members. All are trained and involved in the use of safety and fire fighting equipment. Deck ratings deal with cargo, loading and unloading, carry out lookout duties keeping watch alongside an officer while at sea, and assist with mooring and unmooring the ship while in dock.
Where is it done and under what conditions? On seagoing ships, with widely varying weather conditions and prolonged periods away from home.
What tools/equipment do they use? Various machinery, equipment and fixtures on board ship.
What do you need to succeed? You need to pass internationally required examinations, specialised courses, with suitable vocational training; you also need physical fitness, good eyesight and hearing, manual dexterity, and knowledge at least of basic English. Those ratings involved with the engineering side of the work will require technical interests and understanding.