You may complete an on-line application at the Contra Costa Human Resources Department at 651 Pine St., 2nd Floor, Martinez, CA 94553. Courtesy dictates that you acknowledge a written job offer, even if you are not ready to accept or decline it.Take note of the details of the offer. All notices related to County recruitments for which you have applied will be sent via email. The process consists of the following steps: Create an Account. Forms ; DE-140, Order for Probate ; DE-147, Duties and Liabilities of Personal Representative ; DE-150, Letters. Many schools offer career-guidance tools. These tools can assist you in finding out how your interests and skills fit with careers and college.