2024 – Present W3 Professor for Imaging and Computer Vision RWTH Aachen University Aachen, Germany 2019 – Present Principal Scientist for AI-based imaging and image reconstruction Fraunhofer MEVIS Aachen, Germany 2019 – Present CEO/CTO and Cofounder Hyperion Hybrid Imaging Systems GmbH Aachen, Germany 2018 – 2024 W2 Professor for Physics in Molecular Imaging (PMI) RWTH Aachen University Aachen, Germany 2013 – 2018 W2 Professor / Principal Scientist – Oncology Solutions RWTH Aachen University / Philips Research Laboratories Aachen, Germany 2009 – 2013 Principal Scientist – Oncology Solutions Philips Research Laboratories Aachen, Germany 2004 – 2009 Senior Scientist – Positron Emission Tomography & Magnetic Resonance Imaging Philips Research Laboratories Aachen, Germany 2003 – 2004 System Architect – Intensive Care Draeger Medical Lübeck, Germany 2000 – 2003 Research Scientist – Magnetic Resonance Imaging Systems Philips Research Laboratories Hamburg, Germany 1996 – 2000 Research Assistant – Theoretical Electrical Engineering University of Paderborn Paderborn, Germany