The following information will assist you in applying for jobs with Fairfax County. You may also download this helpful brochure to assist you.Fairfax County Public Schools requires employees to take a physical examination for certain positions. 2. This guide describes how to apply for jobs using the Career Page web site. The process consists of the following steps: Build the exact form you need, in minutes. Create with drag-and-drop. New applicants can apply online to be a substitute teacher or substitute instructional assistant through the FCPS Instructional Talent Gateway. Manual Youth Employment Certificate Application forms may also be submitted to the Department as an alternative to using the electronic system. Check here to acknowledge that for some volunteer positions you will need to do a background check.