Hiring an HTTP requests developer is crucial for managing data exchange and communication in web-based applications. They understand the protocols and methods such as GET, POST, PUT, DELETE, which are vital for server-client communication. They can efficiently handle response status codes, improve API interactions, and optimize request headers. Their skills can enhance website functionality, user experience, and overall performance. Additionally, they can boost the security of your applications by properly managing cookies and sessions, crucial in today's data-sensitive environment. A developer with HTTP requests expertise is thus a valuable asset for any web development project.