An IIS Administration developer manages and configures Microsoft's Internet Information Services, a web server application for Windows Server. They ensure the server's performance, security, and reliability by setting up, maintaining, and optimizing web servers. Their tasks include installing updates, troubleshooting issues, monitoring traffic, and implementing security protocols. They also handle the deployment of web applications, configure server settings, and manage user access. They often work in collaboration with developers and system administrators to ensure seamless delivery of web services. Familiarity with .NET framework, Windows Server, databases, and scripting languages is crucial for this role.