A Click-through Prototyping developer creates interactive models of a website or application's interface. These prototypes simulate the final product's functionality, allowing stakeholders to navigate and interact with it as if it were the real thing. The developer designs different screens or states of the application, then links them together using clickable elements like buttons or menu items. This provides a visual and tangible way to explore the proposed design, understand user flows, identify potential issues, and gather feedback. This role requires a combination of technical, design, and user experience skills.