Hiring an ActionScript developer can greatly enhance your web applications and games development process. They possess expertise in creating rich, interactive, and engaging user interfaces. This developer can handle tasks such as data handling, UI component manipulation, and video streaming, which are crucial for multimedia applications. Their understanding of OOP concepts in ActionScript can help in creating reusable code, making the development process more efficient and maintainable. They can also integrate ActionScript with other technologies, expanding the capabilities of your projects. Hence, they can contribute significantly to your team, improving the user experience and overall quality of your applications.