Complete the boxes with the correct codes for your legal residence. See last page of application for list of residence codes. COUNTY. TOWN. T.Suffolk County Department of Civil Service. This guide describes how to apply for jobs using the Career Page web site. The process consists of the following steps: Starting with your present or most recent job or voluntary position, please complete the table below. 1. Change your address. 2. Change your phone number. 3. To view all the local Department of Social Services forms, please click on the appropriate link. Before completing this application form, please read attached guidance notes which will help you to complete your application.