Hiring a Backburner developer is beneficial because they bring expertise in managing background jobs in Ruby on Rails applications. They ensure your application remains responsive by offloading heavy tasks to the background, improving user experience. Backburner developers can effectively handle asynchronous processing, error handling, and job scheduling, optimizing your system's performance. They also provide solutions for retrying failed jobs and prioritizing tasks, enhancing your application's reliability and efficiency. Their skills can be essential for maintaining the robustness and responsiveness of your web application.