What is backend development?
Applications, whether they are web, mobile, desktop or embedded, are generally compromised of two parts: a frontend and a backend. Where frontend development means shaping the interface and user experience of the application, the backend is all the software that serves as the brains of the application. That means whenever the user interacts with the application, the backend has code that executes the request (application programming), works as a source of data that can process the request (database), and is a storage facility to house everything (server). Summed up, in any application that needs to be able to do more than show a static image, backend development is essential.
The tasks of a backend developer include writing APIs, creating libraries, writing code to interact with a database, working on business processes and data architecture, and much more. It all depends on the type of application and what the owner wants it to do.