Hiring a Behat developer is beneficial for businesses as they specialize in behavior-driven development (BDD), ensuring your software behaves as expected. They write human-readable stories that describe the application's behavior, facilitating communication between developers, stakeholders, and non-technical team members. Their skills in automated testing and PHP development can significantly improve the quality of your software, reduce bugs, and speed up the development process. They can also help train your team in BDD practices, fostering better understanding and collaboration. Overall, a Behat developer can enhance your software development workflow and product quality.