Can I just submit my resume and a cover letter to apply for a job? You may complete an on-line application at the Contra Costa Human Resources Department at 651 Pine St., 2nd Floor, Martinez, CA 94553.Here's a brief guide I made along with a YouTube video that also provides some sample sentences for a cover letter. List experience that relates to the qualifications as required on the job announcement. Begin with present or most recent experience and account for. Use Profile to update basic information that you use to apply for jobs, such as work experience. Many schools offer career-guidance tools. These tools can assist you in finding out how your interests and skills fit with careers and college. Applications will be screened to ensure the applicant meets the minimum qualifications as stated in the job announcement. 1. Click on the job title, and then Apply, to complete the application.