A Model Checking Developer creates and employs algorithms and software tools to analyze systems for design errors. They work with formal models of the system that represent its behavior in a mathematical framework. The developer uses model checking, a method for formally verifying finite-state concurrent systems. They input a model and a specification, and the tool checks if the model satisfies the specification, identifying counterexamples if not. This role requires a strong background in computer science and mathematics, with expertise in logic, graph theory, and algorithms. They also need familiarity with software development and formal methods in system design.