Hiring an AltJs developer can significantly enhance your JavaScript development process. They are proficient in alternative languages like CoffeeScript, TypeScript, etc., which transpile to JavaScript, and have improved syntax and additional features. Their expertise can lead to cleaner, more manageable, and efficient codebase. They are skilled in handling complex applications, ensuring robustness and scalability. With their knowledge in AltJs, they can leverage advanced functionalities, reduce bugs, and improve application performance. Their ability to write safer, more readable code can result in quicker development cycles, allowing your business to deliver products faster and more reliably.