Federal work study is not available to international students. BUT some colleges have their own work study monies and they can do whatever they want with their own money.
I think this student needs to carefully think about the amount he will be allowed to work. Typically, work earnings are used to pay for personal expenses, books, etc.
Also, any potential earnings cannot be included in the certificate of finances this international student will need to complete.
@MYOS1634 or @kelsmom what are the work restrictions for students here on a student visa?