Your cover letter will be the first document that a potential employer will see. It sets the stage for the reader to review your resume.Company Name: Address: Length of Employment: Job duties: 3. Thank you for your interest in applying at Allegheny County. The following information will assist you through the application process. To establish a complete pre-employment file, please complete the online application. Your application will be retained in active status for one school year. A resume is a one to two page documentoften in the form of a bulleted listthat provides an overview of your professional qualifications. A resume is a one to two page documentoften in the form of a bulleted listthat provides an overview of your professional qualifications. Effective immediately, all job postings will be posted in the new PPS Self Service Application Portal.