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Database Management Systems
A backend developer is responsible for writing code that performs relational mapping to extract data from various databases, such as MySQL, SQL Server, PostgreSQL, MongoDB, and Oracle Database. It is essential to have a thorough understanding of these popular database management systems in order to work effectively as a developer. 
Version Control.
Git aids in the management of project files. It maintains track of everything the user has worked on in the past. GitHub is a web-based version control service using Git. The user can examine other people's code, spot errors, and even suggest modifications.
Web Hosting Platforms
Web hosting services allow you to store your product on a cloud service provider and access it online. Popular options include Amazon Web Services (AWS), Google Cloud Platform (GCP), Microsoft Azure, and Heroku.
A backend developer should, of course, have non-technical skills such as problem-solving, critical thinking, effective communication, and analytical abilities. It is important for a backend developer to also be able to work both as part of a team, and independently.
