This talk would cover the background and distinguishing features of the European Interactive Computing E-Infrastructure (ICEI) project, which will offer a set of federated services to realize the Fenix infrastructure (https://fenix-ri.eu). For decades, high "performance" computing, networking, and storage technologies have been among the driving forces behind numerous scientific discoveries and breakthroughs. Recently, the X-as-a-service model offered by several cloud technologies has enabled researchers, particularly in the fields of data science, to access resources and services in an on-demand and elastic manner. Complex workflows in different domains, such as the European Human Brain Project (HBP), however require a converged, consolidated, and flexible set of infrastructure services to support their performance and accessibility requirements.