i got my bs in industrial engineering and was working.  and while working as an ie, got my mba.  i did not have to take gre.  my gpa was good enough that they did not require gre.  it is hard to find a school like that.  my gre was 100% paid by the employer.  if i were you i would do the masters in industrial/systems engineering rather than mba.  you will have more luck finding a job with an IE degree than mba.  unless you get your mba from top business school in the us, it is very hard to find a job just with the mba, and especially being in a student visa.