What is a contract firefighter?

A contract firefighter refers to a firefighter who signs a contract after volunteering to be a firefighter. His system is similar to volunteer firefighters, but contract firefighters are different from volunteer firefighters. Contract firefighters have certain freedom, considerable salary and a certain holiday, which is easier than voluntary firefighters. The prospect of contract firefighters is not very good, and the contract signed is also three or four years. Even if it is renewed, it will be eight years at most. It's due, but I still have to go home. Contract firefighters play a great role, and volunteer firefighters are also trained by contract firefighters and have more experience in fire fighting than volunteer firefighters.