The following information will assist you in applying for jobs with Fairfax County. You may also download this helpful brochure to assist you.There was no detail about salary, leaves, insurance etc. This guide describes how to apply for jobs using the Career Page web site. The process consists of the following steps: After viewing the descriptions and qualifications of the job, click apply to job. New applicants will need to create a login and complete the application. You can just call them and ask to send a offer letter or salary break-out for your satisfaction. There are several ways to send payment for your bill, via mail or online. Your payment options.