An Instagram API developer is responsible for integrating Instagram's capabilities into various applications. They use Instagram's Application Programming Interface (API) to access and manipulate data, like user profiles, posts, comments, and hashtags. Their work involves writing code, debugging, and ensuring the seamless operation of the integrated features. They also maintain the API's security and manage its updates. They often collaborate with other developers and stakeholders to improve user experience, design new features, or create marketing strategies. Their goal is to enhance the functionality of applications and platforms using Instagram's resources.