Looking for additional resume and cover letter tips and templates? 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: In the letter, you can describe your skills and abilities and why you are the best candidate for the job. 1. Change your address. 2. Change your phone number. 3. Submit Online APPLICATION FOR EMPLOYMENT Instructions. A job application is a set of forms that organisations ask people to fill out if they want to apply for a job. It usually asks for information about you,.