An API management developer designs, implements, and manages Application Programming Interfaces (APIs) that enable communication between different software applications. They ensure secure data access and optimize the performance of APIs. They also monitor API usage, maintain their documentation, and resolve any technical issues. They work closely with other developers to create integrated software solutions that meet business requirements. Moreover, they enforce API policies and protocols, ensuring data security and compliance with regulations. They may also be involved in API versioning and retirement, ensuring seamless transitions and maintaining system integrity.