You have to know that, there are three types of web developers:-
full stack which combines both.
Back-end developers are responsible for workings of web applications to build out the "server-side" of web applications. Server-side is the code and language that runs behind the scenes on the web server or the back-end.
This article focuses on back-end developers at what they do, the skills required to become a back-end developer
Back-end developers work with front-end developers by providing the outward facing web application elements server-side logic. That’s means, back-end developers create the logic to make the web app function properly, and they accomplish this through the use of server-side scripting languages like Ruby or PHP.
back-end developers are also responsible for optimizing the application for speed and efficiency. Moreover, back-end developers often create a data storage solution with a database, which is a crucial component for all web applications since it stores information (like users, comments, posts, etc.). Common databases include MySQL, MongoDB, and PostgreSQL.
On the back-end team, back-end developers work alongside software engineers each with a specific role like REST API development or quality assurance (QA). Even within the back-end, there are different roles and responsibilities.
below are some of the core skills and technologies a back-end developer must know.
Most back-end developers have formal training in one way or another including a computer science (CS) degree.
Back-end developers may have to do more abstraction than front-end developers. They could be data mining, writing abstract algorithms, and so forth. That's why a formal CS degree is important.
Nevertheless, if you're beyond your college years, there are both in-person courses (or boot camps) as well as online options available to prepare you for a career in back-end development.
The best way to find back-end development course is through online research.
boot camps/courses aren't cheap. But they are more affordable than a formal CS degree. (Plus, unlike online classes, you have the luxury of being able to interact with peers and an instructor.)
It is not as easy to find back-end-only online courses. Most teach full-stack, which is both the front and back-end. Nonetheless, here are some online course options to consider: