You may complete an on-line application at the Contra Costa Human Resources Department at 651 Pine St., 2nd Floor, Martinez, CA 94553. It is important to submit your application with complete and accurate information.Yes, I've been assigned to interview with not only the County Counsel, but also Employment and Human Services, the Library, and Probation. The application screening process will result in rejection of some applicants and a decision to interview the most qualified applicants. While the offer letter shows agreement, it might not be a legally binding contract. Candidate to be interviewed. • Bring your master application, résumé and list of references with you to help you fill out the application. I moved in or out of Contra Costa County, how do I transfer my case? Please submit a Transfer Request Form with your Edjoin application. Candidates are required to complete the PSSA through thier candidate account for this position.