Sure. However if you are thinking for server/cloud usage, I would recommend considering AMQP instead (RabbitMQ etc). Especially if you want a "worker" type mode

Sure. However if you are thinking for server/cloud usage, I would recommend considering AMQP instead (RabbitMQ etc). Especially if you want a "worker" type model with horizontal scalability for job processing, then the roundrobin. Some of the functionality has been added to the MQTTv5 spec, but client support is not as good for that yet, and its not as battle tested as AMQP.