If your employer will keep it undocumented and no one will report INS, you will be fine. But I doubt your employer will do that, that's huge violation for them. They can't hire any person without work authorization.
Even they will do that, I would not suggest you to take that job. Legal status is much, much more important than any job.
Even they will do that, I would not suggest you to take that job. Legal status is much, much more important than any job.