List experience that relates to the qualifications as required 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.This document is the official Employment Application for Contra Costa County. It includes required personal, educational, and employment information. We can help you discover rewarding career paths, find a job, write your resume and cover letters and even get ready for interviews. Contra Costa County is seeking talented and qualified individuals to fill clerical vacancies throughout the County! Current Job Openings. Position Details: Thank you for your interest in applying for the tenuretrack faculty position in the Counseling area at DVC! Click the links below to view the job descriptions. We're hiring doctors!