APIs act as the bridge between frontend, backend, and third-party services, allowing seamless interaction without direct dependency.
An API developer focuses on designing, implementing, securing, and optimizing endpoints, ensuring scalability and consistency across the entire system.

Popular technologies include Node.js, Express.js, Django, Flask, FastAPI, NestJS, and Spring Boot, along with communication standards such as RESTful, GraphQL, and WebSocket.

Core Aspects:

• RESTful API Design — Simple, scalable, and HTTP-compliant structure.

• Security & Authentication — Implementing JWT, OAuth2, API Keys for secure access.

• High Performance — Optimized queries, caching, and efficient request handling.

• Comprehensive Documentation — Using Swagger / Postman for clarity and maintainability.

Conclusion:

API Development is the backbone of modern software architecture — enabling smooth communication, integration, and innovation across digital platforms.