There is a lot of discussion on the visa aspect, but not as much on the general advice relating to raises and promotions. Is he currently under paid for the pos

There is a lot of discussion on the visa aspect, but not as much on the general advice relating to raises and promotions. Is he currently under paid for the position and responsibilities relative to others in the company? Or more generally to the market at large? Another tip is to take credit for the work that makes a difference to the company, and in the bigger picture to be doing work that matters.