A Formal Modeling developer designs, implements, and evaluates mathematical models to represent complex systems, processes, or phenomena. They use formal methods and languages to create abstract models that can predict outcomes, analyze system behavior, or verify system properties. Their work is crucial in fields like software engineering, system security, and data analysis, where accurate prediction and system verification are key. They must understand both the technical aspects of the system and the mathematical techniques used in modeling. They also often collaborate with other professionals to ensure the models accurately represent the real-world systems they are designed to simulate.