Answer:
Handles what happens behind the scenes on websites
Step-by-step explanation:
The website back end is made up of server, an application, and a database. The back-end developer builds and coordinate these components together. Back end developers manage the technical side of the websites (that is what the users do not see on the website).
The back end developer needs to know how to program using PHP, java, Python, Ruby, as well as use tools such as MySQL, Oracle, and SQL Server.