The one I know is Newman University in Kansas. They do not need GMAT for MBA or I think if you are doing MBA in Management Information Systems also they do not need it. I am not sure if they have any engineering majors for Masters. Its not ABET accredited though. But, I have seen students pass from this university and reach places. I dont believe its the school who will land you in good jobs. You have to have knowledge on technical stuffs if you want good money. Talking about IELTS, I am not sure but i have seen many many students in hell just for not doing TOEFL. IELTS would sometime be good enough to get you an I20 but when you reach here they will try to keep you in some intensive english classes and suck your money for nothing. So, make the smart choice, do some study on colleges and plan good.