How do I get a state pardon for a misdeamanor?

The answer depends on the sentence. I doubt you mean you want a pardon. That comes from the governor and requires extensive work on the part of your attorney, great expense and is difficult to get. You probably mean either an expunction or a non-disclosure order. If you received a deferred adjudication and did it is successfully completed, a non-disclosure order will probably accomplish what you want to avoid employers seeing the record. If you received a straight probation you may be able to get a section 20 discharge to set aside the conviction. If the case was dismissed, you may be eligible for an expunction which results in the removal of all records from your criminal history. If you were convicted or pled and received a sentence, the only answer is a pardon and, as I wrote above, it is a complicated, expensive process and is rarely done for a misdemeanor because there is no assurance that the attempt will be successful.