Find a job or internship Find a job or an internship working for the City of Philadelphia. Become a police officer Job information and steps to take if you want to become a Philadelphia police officer. Apply for a job with the City of Philadelphia How to apply for a job or internship with the City of Philadelphia. Become a substitute teacher Instructions for applying to become a substitute teacher for the School District of Philadelphia. Join the Fire Department You can get a job at the Fire Department as a firefighter, a paramedic, or a civilian. Teens can join our Fire Explorers program. Become a lifeguard Information about becoming a Philadelphia Parks & Recreation lifeguard. Apply for an internship at the Medical Examiner’s Office The Medical Examiner’s Office offers a limited number of unpaid internships.