Employment opportunities at the City, and laws and regulations for employers in Philadelphia. Apply for a job with the City of Philadelphia How to search and apply for a job working for the City of Philadelphia. Become a firefighter The recruitment process for becoming a firefighter. Become a police officer Job information and steps to take if you want to become a Philadelphia police officer. Become a substitute teacher Instructions for applying to become a substitute teacher for the School District of Philadelphia. Paid sick leave Details on the City law that requires sick leave for employees, and how to report a Philadelphia business that isn’t following the law.