It all depends on how it is charged and how you resolve it. If it is a class C misdemeanor, which it should be given the amount alleged, you need to successfully complete a deferred adjudication. If you successfully complete a deferred, then after a 2 year waiting period you can move to expunge your record and it will be removed from your record permanently. If you just plead guilty, or pay the fine, it will be a final conviction and will be on your record forever which is obviously not what you want.
Hire an attorney if you can to help you negotiate minimal terms on the deferred to help you complete it successfully. I assure you, the money charged today will be worth it in the future.
In order to save your future record, you need to get a deferred on the case. Some call it deferred adjudication, others call it deferred prosecution - different courts, different terms but in Class C land (municipal / JP court) it means the same thing.
On the probation there will be some requirements of you including community service and possibly an anti-theft class. The probation is normally about 90 days. You cannot get any law violations including NO traffic tickets. Once the probation period is over, the case is dismissed completely.
Once you serve out the deferred, you must wait 2 years before filing a petition for expunction in civil district court to remove the case completely from your record. In the interim, if you serve out the deferred, it is not likely that employers will find it because it is not reported to a central agency.
If you contact the court and ask about a deferred and they will not help you in getting it, or you go to court and the prosecutor declines to give it to you, ask for a reset and hire a lawyer.
BTW, it is not a "mistake" to steal. It is a crime of moral turpitude that could affect you for the rest of your life if it is not handled correctly.
Although I have answered the question to try to help you, you should consult with a lawyer in your area in person on the matter. In addition, my answer does not establish an attorney-client relationship between us.
It can come off if you got a DADJ and it was a class C misdemeanor, you can get it expunged after a 2 year statute of limitations period has run from the time you pled.
If you pled guilty on a straight probation, it will stay on your record.