Hiring a GQL (GraphQL) developer can greatly enhance your application's data-fetching efficiency. Unlike traditional REST APIs, GraphQL allows client applications to retrieve exactly what they need, reducing unnecessary data transfers. A GQL developer can also help consolidate your APIs into a single, robust, and flexible endpoint, streamlining your backend operations. They can build real-time applications with live updates using GraphQL subscriptions. Moreover, they bring expertise to manage data relationships and API versioning, leading to better performance, lower costs, and improved user experience.