The 2nd Officer / Second Mate is the third in command (or on some ocean liners fourth) and a watchkeeping officer, customarily the ship's navigator.
The Navigator's role focuses on creating the ship's passage plans. A passage plan is a comprehensive, step by step description of how the voyage is to proceed from berth to berth or one port to another. The plan includes undocking, departure, the en route portion of a voyage, approach, and mooring at the destination.
Chief Engineer is the senior most engine officer of an engine department on a ship, typically a merchant ship, and holds overall leadership and the responsibility of that department. As a person who holds one of the most senior roles on the ship, they must have excellent communication and leadership skills. They will be expected to regularly work alongside other crew members and external consultants, and most importantly, provide guidance to his or her team.
Third engineer or second assistant engineer is usually in charge of boilers, fuel, auxiliary engines, condensate, and feed systems. The exact duties of this position will often depend upon the type of ship and arrangement of the engine department.
As deck crew foreman, the boatswain plans the day's work and assigns tasks to the deck crew. As work is completed, the boatswain checks on completed work for compliance with approved operating procedures.
A chief cook is a senior most crew member working in the steward's department of a merchant ship. The chief cook's principal role is to ensure the preparation and serving of meals that are both delicious and nutritious for All crew ship.
The Electrician is a person with moderate experience in the electrical field. He provides services regarding inspection, maintenance, and repair of installations and electrical equipment.