I'm afraid what's floating out there in the ether as compared to the "court record" isn't relevant. You don't say what other database this shows up on, but if the issue has been expunged legally, you need to go through steps to have the reporting entity/company know that it was expunged. That won't help you with current prospective employer, but it may in the future if they use the same resources.
"... are they still able to deny me?"
Yes.
"The judge dismissed it after my one year probation was up, the reason for the probation being so long was so that I could actually pay the fine. "
But that does NOT mean the arrest/issue was expunged from everyone's records.

