An (Layer ) protocol HTTP developer designs, implements, and maintains applications using the HTTP protocol. This involves ensuring seamless communication between client-side and server-side applications, creating and managing APIs, and ensuring data transfer's security and efficiency. They are responsible for troubleshooting HTTP errors, optimizing load balancing, and managing sessions. Developers must also have a strong understanding of SSL/TLS encryption for secure data transmission. They ensure the application complies with the latest web standards and is compatible across different browsers and devices. Moreover, they often work on enhancing application performance and scalability.