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A back-end developer is a programmer who develops the logical back-end and core computational logic of a [website](https://essayservices.org/), software or information system. The back end developer produces components and features that are indirectly accessed by a client through a front-end application or scheme.
A back-end developer has expert programming skills in:
* Java and other high-level programming languages
* Testing and debugging
The key role of a back-end developer is to make sure that the information or services requested by the front-end system are delivered through programmatic means. Back-end developers maintain the entire back-end of an information system, which consists of the core application logic, databases, data and application integration, API etc.