Is the recruitment contract system of the Federation of Trade Unions good?

Okay.

The Federation of Trade Unions recruits contract workers, specifically to serve the people at the county level, and the salary prospects are very good.

Trade unions, also known as labor federations and workers' federations. A trade union is a mass organization of the working class formed voluntarily by employees. This is a common interest group such as employees working for the same employer or individuals in a certain industry.