USCIS will mail your work permit to the address you provided in your application. If you are aged 14-17 you will need an employment certificate, also called working papers, in order to hold a job in New York State.All employees desiring to work extra employment must complete the online extra employment application prior to working any extra employment. Form I-765 while in the United States. This guide describes how to apply for jobs using the Career Page web site. The process consists of the following steps: