Explore reactive programming and microservices with MicroProfile in this 40-minute conference talk from Devoxx. Learn how to build lightweight, robust, and scalable reactive systems using opensource tools like MicroProfile, RxJava, React.js, Kafka, and Hazelcast. Discover how to efficiently assemble these components using Payara Micro, and gain insights into creating systems that can evolve to meet changing needs and increasing loads. Delve into topics such as reactive operators, Java EE integration, data flow management, API changes, observables, error handling, and resource management. Benefit from the expertise of Ondro Mihályi, a core member of Payara and MicroProfile projects, as he demonstrates practical applications and best practices for building flexible and successful microservices architectures.