Financial Aid chances at IIT/Chicago and Northern Illinois University

My grand son is selected for M.S. in Computer Science in IIT/Chicago
and Northern Illinois University.
He needs a minimum of 50% financial assistance. Request the parents
and students to guide me in which school he will have chances of
getting any assistantships or on campus jobs .
Thanks in advance

Did he ask the schools or search their websites?

I am an International student

Are you the student or the grandparent? You cannot share logins for CC.