Ambitious Internet of Things applications have one thing in common: They produce massive amounts of data. But how to design the next-generation IoT backend that is able to meet the business requirements and doesn’t explode as soon as the traffic increases? This talk will cover how to use MQTT to connect millions of devices with commodity servers and process huge amounts of data. Learn all the common design patterns and see the technologies that actually scale. Explore when to use Cassandra, Kafka, Spark, Docker, and other tools and when to stick with your good ol’ SQL database or Enterprise Message Queue.