Join the San Bernardino County Team! This guide describes how to apply for jobs using the Career Page web site.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. Do I have to use an application form? Applicants are encouraged to submit applications online. To initiate the application process click the Apply tab. The Apply tab is located toward the top of the posting next to Job Details. Only online applications are accepted. San Bernardino County.