What does the backend mainly do?

The backend is the server part of the application and is responsible for core tasks such as database interaction, business logic processing and responding to client requests. Back-end engineers play a vital role in IT companies, responsible for the stable operation of back-end servers and communication and coordination with front-end server personnel.

The backend mainly refers to the server part of the application, which is responsible for core tasks such as interacting with the database, processing business logic, and responding to client requests. Back-end engineers are an important job position in IT companies. They not only ensure the normal operation of back-end servers, but are also responsible for communicating with front-end server staff.

The main work content of the backend includes but is not limited to:

1. Design, develop, test and maintain various backend subsystems to ensure that they can run stably and efficiently.
2. Participate in product design and provide feasibility suggestions from a technical perspective to ensure that the technical implementation of the product meets business needs.
3. Responsible for the security and stability of online servers during operation, ensuring that back-end services can withstand various security threats and failures.
4. Write server-side code, implement business logic, and handle data storage and management.
5. Design and optimize the database to ensure data integrity, security and performance.
6. Design API and architecture diagram to provide a stable and efficient data interface for the front end.
7. Collaborate with front-end developers to achieve front-end and back-end data interaction and dynamic rendering of pages.

In addition, back-end engineers also need to focus on performance optimization, error handling, logging, etc. to provide high-quality back-end services. During the development process, they also need to continuously learn new technologies and tools to adapt to changing market needs and technical environment.

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