A Prolog Developer is a software professional who specializes in programming using Prolog, a logic-based language commonly used in artificial intelligence, expert systems, and rule-based applications. They design, develop, and optimize Prolog-based solutions for tasks like natural language processing, automated reasoning, and knowledge representation. Their responsibilities often include writing efficient Prolog code, debugging logical errors, and integrating Prolog with other technologies. Prolog Developers typically work in research, academia, or industries requiring complex problem-solving, such as AI and robotics.