Hiring an isomorphic developer offers significant benefits. They are skilled in creating isomorphic applications, which are designed to run both on the client-side and server-side. This ability ensures faster page loads, improved SEO, and a more seamless user experience as content is rendered quickly. Isomorphic developers can also streamline your development process, as they use the same language for both front-end and back-end development, reducing the need for multiple specialists. Their expertise can significantly enhance your web application's performance, efficiency, and user satisfaction.