What is the development prospect of pile foundation builders?

Nowadays, there are more and more high-rise buildings, and generally there are pile foundation projects, so the job opportunities of pile foundation builders are still great. However, the working conditions are a bit poor, and you may have to work around the clock, and the construction period is generally short, and it will take dozens of days to months to move. In addition, there are not many construction sites that a person is responsible for, which restricts his short-term salary increase from exceeding the increase of the target.