Unless its from a highly ranked Uni, or u have GC, its useless. Who suggested u to do masters in math ? Its not that hard to change field here in US. People do it all the time. Even if u had bachelors in math, u could have easily done masters in other fields with good job prospect. U missed ur chance. Now your options are : to do PHD from a good uni and become a professor, goto IT or do second masters in a field that has good job prospects.

All the best