Steffen is an Assistant Professor of Scientific Big Data Visualization at University of Groningen, Netherlands. His research concerns the development of methods to gain insights from large quantities of scientific data (typically from experiments and simulations). Meaningful analysis requires addressing challenges both regarding presentation and performance, and involves diverse–but tightly connected–research directions, including machine learning /optimization for visualization, high performance computation (distributed/parallel approaches, in situ visualization), and multifield visualization. An overarching topic is the automatic, data-driven configuration of methods and systems.