A chief mate is the second-in-command officer after the captain of the ship. As a chief mate, your job is to oversee vessel navigation, supervise cargo operations, and monitor specific onboard equipment. Other responsibilities include maintaining the cargo gears and cargo, checking the emergency and firefighting equipment, scheduling the deck crew, and ensuring the stability of the ship. You serve as the first officer to the captain so you must ensure all the ship’s crew comply with all rules and regulations and safeguard their safety and welfare; you may also assist with hiring and training new employees as necessary. After working as a chief mate for several years, you may be able to move up to the captain of the ship.