ING is a large financial institution operating since 1881 with over 33 million customers. It aims to become more data-driven through its Think Forward strategy. It is building a streaming analytics platform using Apache Flink for real-time processing to enable uses cases like fraud detection and personalized insights. The platform uses a probabilistic approach combining event pattern matching, machine learning models in PMML format, and a post-processing stage to produce notifications. It is developed according to ING's agile way of working and provides both functional and modular flexibility.