* First Officer: The first officer is second in command of the ship and assists the captain with their duties. They are also responsible for taking command of the ship if the captain is unable to do so.
* Chief Engineer: The chief engineer is responsible for the maintenance and operation of the ship's engines and other systems. They also oversee the work of the engineering crew.
* Chief Science Officer: The chief science officer is responsible for conducting scientific research and experiments. They also oversee the work of the science crew.
* Chief Medical Officer: The chief medical officer is responsible for the health and well-being of the ship's crew. They also oversee the work of the medical crew.
* Chief Security Officer: The chief security officer is responsible for the security of the ship and its crew. They also oversee the work of the security crew.
* Communications Officer: The communications officer is responsible for sending and receiving messages between the ship and other ships or stations. They also oversee the work of the communications crew.
* Navigator: The navigator is responsible for plotting the ship's course and ensuring that it arrives at its destination safely. They also oversee the work of the navigation crew.
* Helmsman: The helmsman is responsible for steering the ship. They also oversee the work of the steering crew.
* Tactical Officer: The tactical officer is responsible for operating the ship's weapons and shields. They also oversee the work of the tactical crew.
These are just a few of the many jobs that exist in Star Trek. The Star Trek universe is a vast and complex one, and there are many other jobs that exist that are not listed here.