This document provides a template and instructions for writing a letter confirming that an employee has successfully completed their probation period. It's up to the employer - you should ask them.Be aware that they may be unwilling to do this until you pass the background check. During a one-year probationary period, incumbents complete the training program and a subsequent six months of on-the-job training. Commonly known as the 90day probationary period, this is the time duration when employers assess whether a new employee is a good fit for the company. All regular County employees must satisfactorily complete a probationary period of twelve months. The Employment Development Department may require a new probation in accordance with applicable probationary period rules. Go directly to the employment office of a company or business and ask to fill out an application. Click Apply Now to complete the SJSU Online Employment Application and attach the following documents: Resume; Letter of Interest. Found 2 result(s) for your search.