▣ Back-end languages are Ruby on Rails, MySQL, MongoDB, PostgreSQL, Ruby, Python, and .NET.
▣ Back-end developers consist of the architecture team, that design an application that supports the front-end as well as provides support, security, and content management.
▣ Back-end development can be provided as an independent service in the form of BaaS (Back-end as a service).
▣ The back-end team exists to create an application around the front-end and support it. In addition, they make sure that the website opens up and functions properly.