What is the career scope in back-office (clerical) for B.SC.IT graduate cadidate, having 3.5 years experience in same field, in private firm

What is the career scope in back-office (clerical) for B.SC.IT graduate cadidate, having 3.5 years experience in back-office field, in private firm (Not in BPO), how much he can be paid by employers, what are new certifications he can do to excel/improve his knowledge ?