This guide describes how to apply for jobs using the Career Page web site. The process consists of the following steps:The following information will assist you in applying for jobs with Fairfax County. You may also download this helpful brochure to assist you. Image of Apply button. Your application template fills in the basic information for step one, and you are able to proceed with the application process steps. New applicants can apply online to be a substitute teacher or substitute instructional assistant through the FCPS Instructional Talent Gateway. All AAP forms are available below along with the purpose of the form, who completes the form, and the deadline. I am currently a registered voter, or eligible to be a registered voter in Virginia. I do not hold elected office nor do I work for an elected official.