Backend developers build code that allows a database and an application to communicate with one another. Backend developers take care and maintain the back-end of a website, Including databases, servers, and apps, and they control what you don't see.
The backend usually consists of three parts: a server, an application, and a database.
The back end refers to parts of a computer application or a program's code that allow it to operate and that cannot be accessed by a user. Most data and operating syntax are stored and accessed in the back end of a computer system. Typically the code is comprised of one or more programming languages.
Back-end development refers to the development of server-side logic that powers websites and apps from behind the scenes. One of the most common perceptions is that learning frontend development is easier than learning backend. The truth is that on a beginner's level, the front end tends to be easier. But when it comes to an in-depth understanding, both can have the same difficulty and complexity as they require patience and discipline.