What does the supervisor of a construction company do?

What kind of supervisor is nothing more than supervision. People in the industry will laugh at you if you say so.

The supervisor is the first person hired by Party A [the investor] in the supervision company, who is very powerful in supervising the progress and quality of the project. I had nothing to do in the field, so I took it with me. It was delicious and delicious.

There is also the supervisor of the engineering company, belonging to the contractor series, just a small official, who plays the role of a shift leader and supervises the work of workers.

I don't know which one you are talking about. Give me some advice.