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.We can help you discover rewarding career paths, find a job, write your resume and cover letters and even get ready for interviews. An incomplete application packet may disqualify an applicant. Should I got to Contra Costa College or Berkeley City College if I'm planning to transfer to a UC within 2 years? Please check that the email listed on your application is correct before submitting. Employers can complete the Earn and Learn Form. Candidates that possess the minimum qualifications will advance in the recruitment process for Deputy Sheriff Recruit.