The following information will assist you in applying for jobs with Fairfax County. You may also download this helpful brochure to assist you.This guide describes how to apply for jobs using the Career Page web site. The process consists of the following steps: New applicants can apply online to be a substitute teacher or substitute instructional assistant through the FCPS Instructional Talent Gateway. What is the Close Date on a job posting? How do I complete an online application? An enrolling parent may request a student transfer for their child in grades kindergarten through 12 to attend a non-base school. Learn about what the program is and who is eligible. For example: Image of Apply button.