A cover letter usually is three paragraphs long and outlines why you are applying for a specific position, a brief overview of your professional background. Choose a sample resume and cover letter according to your program or career interest.These samples are designed to give you an idea of the kind of formatting. You can apply for jobs and internships with the City of Philadelphia using the online job board. There are two types of City jobs. Explain why you are interested in the position and employer. Include information you have gathered about the organization, and list important facts and details. Your email can make or break your job application. Here we explain the process for writing an effective email for a job application. After completing the online application, click the save tab.