This guide describes how to apply for jobs using the Career Page web site. The process consists of the following steps:Background Forms Please Note: All documents must be printed single sided only. Information about the County's applicant testing, interviewing, and hiring process can be found here. It is easy to set up your profile and start applying. Background Investigation. Employment background checks in California search records and perform screenings to gather information about a candidate's previous history. Usually, a full ADP records takes about 3 weeks in riverside and San Bernardino county.