An arrest will show up on your background check, however, depending on what the charges are, whether the case is dropped or your convicted will likely make a difference on how a future employer views you. Remember, it is always best to be truthful in your application because if you conceal your criminal record, if it is discovered later, you can be terminated.
Florida has an extremely liberal open records law. Anyone can go on myorangeclerk.com and look at pending cases. If the charge is a felony then its even worse and an employer would be wary of it. I have had this issue come up with clients. Best thing to do is to resolve the charges quickly and if the outcome is favorable you can seal/expunge your record.