This guide describes how to apply for jobs using the Career Page web site. The process consists of the following steps:Learn how to conduct fast, compliant background checks in NY in this comprehensive guide for employers and HR managers. Information on how NYS residents can obtain their own criminal history record, and FAQs regarding expungement and Certificates of Relief and Good Conduct. This application must be filled out accurately and completely. Go through the New York State Office of Court Administration for a multi-county background report covering 14 counties in the metro area. You may fill out an application only for a position you see posted online. If you do not see your desired position, continue to check the website periodically. The letter indicates whether or not you have been arrested in Nassau County and only serves as a criminal history record check of the files of Nassau County. Q. How do I apply for a job with the Nassau County Sheriff's Office?