An IBM AIX developer specializes in creating and managing systems on the IBM AIX, a UNIX-based operating system. They design, code, test, and debug applications, often working with software like C/C++, Java, and Python. They also handle system administration tasks such as configuring, installing, and maintaining the AIX operating system, managing system performance, and troubleshooting issues. They work with databases, handle storage management, and ensure system security. Furthermore, they often collaborate with other IT professionals to integrate AIX systems with other platforms and aid in migration or upgrade processes. Their role is critical in optimizing system efficiency and reliability.