[9] He was previously Vice President for Academic Affairs (starting in 2021)[10] at EPFL (École polytechnique fédérale de Lausanne) and held the Chair of Computational Mathematics and Simulation Science (MCSS).

[11] He is particularly known for contributions to the development, analysis and application of high-order accurate computational methods for time-dependent partial differential equations.

[2] He has also contributed substantially to the development of reduced order models and the application of neural networks and machine learning techniques to problems in science and engineering.

In 2013, he joined EPFL (École polytechnique fédérale de Lausanne) where he was appointed full professor of computational mathematics and simulation science,[13] and shortly later, in February 2014, he founded the new unit of Scientific IT and Application Support (SCITAS)[14] From 2016 to 2021 he served as Editor in Chief of SIAM Journal of Scientific Computing.

[16] In January 2024, he was elected as the future president of the German Karlsruhe Institute of Technology (KIT) by the supervisory board.