Back-end development is the work that goes on behind the scenes to make sure the front-end program churning away does so without bringing half your computer to a standstill.
The back-end, or “server side”, of a website is where the data is stored and it usually consists of three parts: a server, an application, and a database. Back-end developers need to understand databases, as well as server programming languages and architecture. If an application keeps crashing or is mind-numbingly slow or keeps throwing errors at you, it’s likely to be a back-end issue.
Finally, database management is a prime aspect of back-end development. Database management is the backbone of any system that holds large amounts of data. Think companies’ client database, such as Facebook’s; one billion users’ details have to be organized somehow, and back-end developers make this their job.