Rosa Gutiérrez, Principal Programmer at 37signals, shares her expertise on the development of Solid Queue, a new job management solution in Ruby on Rails. She discusses the decision to replace Resque, emphasizing improved reliability and maintainability. Rosa reveals the challenges faced during the migration of live apps like Hey, including strategies for managing long-running tasks and debugging failures. The conversation also touches on the joy of deleting old code, job scheduling complexities, and her favorite software reads that influence coding practices.