As a backend PHP developer, you will work hand-in-hand with front-end developers by providing the outward facing web application elements server-side logic. You should have the ability to create the logic to make the web app function properly, and accomplish this through the use of server-side scripting languages like or PHP. Aside from making web applications functional, you will be also responsible for optimizing the application for speed and efficiency. Moreover, you will often have to create a data storage solution with a database, which is a crucial component for all web applications since it stores information (like users, comments, posts, etc.). Common databases you will work with include MySQL.