In this interview with Rosa Gutierrez of 37signals, Rosa elaborates on her work, particularly her contributions to Solid Queue and its implementation alongside Active Job. She describes the motivations behind developing Solid Queue, addressing performance issues with existing systems like Resque, and transitioning some workloads to database-backed queues. Rosa also explains the technical details of Solid Queue's architecture, including supervisor and dispatcher roles, how it handles job prioritization, concurrency, and the challenges of ensuring performance in high-load environments. Essential advice is provided on when to use or avoid Solid Queue, depending on specific needs and existing setups. Solid Queue37signals