The back end, i.e. the back, ensures that the front end works. A back-end developer works in programming languages, also called code. By means of this code, the back-end developer ensures that all processes that the user does not see run optimally.
Suppose you are going to order something from a webshop. You view your product and then drop it into your shopping cart. That’s where the back end starts. Placing a product in a shopping cart is a process. Then you place an order. This order must arrive at the back office of the seller. Another important process, in which the back end ensures that the order arrives at the seller properly and quickly.
The back end is not visible to the user, but not always to the admin of a website. The invisible process is what is arranged in the back end. These processes are extremely important for the optimal functioning of your website.