Who is responsible for managing and maintaining message queue handlers?

Management and maintenance of message queue handlers are usually entrusted to the development team or system administrators, depending on the context:

• Developers are responsible for writing and supporting handler code, ensuring correct message processing.
• System administrators or DevOps engineers monitor the queue infrastructure, its scaling, monitoring, and fault tolerance. In small teams, these roles may overlap, but generally, responsibility is shared between developers (processing logic) and infrastructure (queue operation).