Hello, I'm Javier Nieto from Banco Santander. I'm working in the architecture and innovation department of Santander Corporate Investment Banking (SCIB). We made an innovative architecture to meet the bank's new goals. As a summary of our architecture: We use both a a batch data lake for daily processing and a transactional cluster for intraday operative. We do periodic data synchronization between them. We use several different technologias, Flink, Hazelcast, Kafka, Drools, Cloudera, Spark, NiFi, Hortonworks and Schema Registry.