You must also complete and submit any additional information listed on the job announcement. You may complete an on-line application at the Contra Costa Human Resources Department at 651 Pine St., 2nd Floor, Martinez, CA 94553.Upload any attachments, such as a résumé, driver's license, or certificates. Resume Help; Interview Preparation; Job Placement Assistance. We are accepting applications online. The first step in finding a job is usually creating a resume. Our Resume Builder will help you do just that. An incomplete application packet may disqualify an applicant. • Bring your master application, résumé and list of references with you to help you fill out the application. Description: Take your resume to the next level and get expert interviewing tips that will help you stand out from other job candidates.