The Big Data Europe project is developing a flexible platform called the Big Data Integrator to support big data applications across multiple societal domains. The platform incorporates existing big data technologies in a modular Docker-based architecture. The project is testing the platform through 7 pilot use cases in domains like health, agriculture, energy, transport, climate, social sciences, and security. The pilots demonstrate how the platform can integrate and analyze diverse data sources to address challenges in each domain. The project is engaging stakeholders through workshops and other activities to gather requirements and showcase results.