Since 2023: Professor (W3) for Experimental Particle Physics, Universität Hamburg, Germany
Since 2022: Director of the Particle Physics division, DESY, Hamburg, Germany
2016–2021: Lead Scientist, DESY, Hamburg, Germany
2016–2023: Professor (W3), Albert-Ludwigs-Universität Freiburg, Germany
2012–2016: Full Professor, University of California, Berkeley, and Senior Scientist, Lawrence Berkeley National Laboratory, Berkeley, USA
2006–2012: Associate Professor, University of California, Berkeley, and Staff Scientist, Lawrence Berkeley National Laboratory, Berkeley, USA
2004–2006: Royal Society University Fellow, University of Liverpool, UK
1999–2004: PPARC Fellow (postdoctoral and advanced), University of Liverpool, UK
1996–1999: Doctorate in Physics, Universität Hamburg, Germany
1990–1996: Diploma in Physics, Universität Hamburg, Germany

Institutional responsibilities

2023: Particle Physics Project Prioritisation Panel (P5) committee, USA
Since 2022: CEPC International Advisory Committee, China
Since 2022: FCC Steering Committee, CERN
Since 2022: International Committee of Future Accelerators (ICFA)
Since 2022: Kuratorium “Kinder forschen” (a.k.a “Haus der Kleine Forscher”), Germany
2021–2022: Fermilab Physics Advisory Committee (PAC), USA
2021: Spanish national grants committee for nuclear, particle and astro-particle physics, Spain
Since 2020: Selection Committee for ERC Advanced Grants
Since 2019: Co-Spokesperson “Matter and the Universe”, Helmholtz Association
2019: Distinguished Scientist selection committee, FNAL, Batavia/IL, USA: chair
2019–2020: Member of the Steering Committee (Equal Opportunity director) of the Cluster of Excellence “Quantum Universe”, Universität Hamburg, Germany
Since 2018: Scientific leadership and founder of the LUXE collaboration (elected)
2018–2020: European Particle Physics Strategy Update Physics Preparatory Group (PPG)
2018: SAAC of Weizmann Institute of Science, Rehovot, Israel
2017–2022: Science Policy Committee (SPC), CERN
2017–2021: Scientific Committee of the Laboratori Nazionali di Frascati (LNF)
Since 2017: Think Tank of the Helmholtz Association
2017–2021: European Physical Society HEPP Board
2016–2020: MIT LNS Deans Advisory Committee, Cambridge/MA, USA
2016–2019: LBNC Review Panel at FNAL, Batavia/IL, USA: member (chair of physics TDR review committee)
2016–2019: LPNHE (Paris) science committee, Paris, France
2013–2017: Deputy Spokesperson of ATLAS Collaboration (elected)
2009–2011: ATLAS Data Preparation Coordinator (elected)
Since 2009: Fellow of America Physical Society (elected)
2005–2006: Physics Coordinator of CDF Collaboration (elected)
2004–2009: IPPP Durham Steering Committee, Durham, UK
2003–2005: Exotics Group convener of CDF