I have held a number of notable leadership and service positions at the University of Pennsylvania. I have also served in a range of positions advising and serving external academic, federal, and private entities.
Academic Positions
- Dean, School of Arts and Sciences, University of Pennsylvania (2025 – present)
- Associate Dean for the Natural Sciences, School of Arts and Sciences, University of Pennsylvania (2023 – 2025)
- Chair, Department of Physics and Astronomy, University of Pennsylvania. (2014-2022)
- Co-Director: Center for Particle Cosmology (2009 – 2025)
- Chair, SAS Committee on Tenure and Promotion Policies (2015-2016)
- Chair, SAS Personnel Committee (2013-2014)
- Member, SAS Personnel Committee (2012-2013)
- Member, SAS Planning and Priorities Committee (2011-2014)
External Service Positions and Editorial Boards
- Member, Scientific Advisory Board, Mathematical and Physical Sciences, The Simons Foundation (2023 – )
- Member, Committee on Science And the Arts, The Franklin Institute, Philadelphia (2023 – )
- Member, Nominating Committee, Division of Gravitational Physics (DGRAV), American Physical Society (APS), (2022- )
- Member, Advisory Board, Kavli Institute for Theoretical Physics, Santa Barbara (2017 – 2020)
- Member, US High Energy Physics Advisory Panel (HEPAP) (2016-2019)
- Member, External Review Committee, Carnegie Mellon Physics Department (2023)
- Member, External Review Committee, Ohio State Physics Department (2018)
- Member, Judging committee, Buchalter Cosmology Prize (2017-2020)
- Member, US Department of Energy, High Energy Physics Committee of Visitors (2016)
- Member of the Fermi Research Alliance Visiting Committee (2013- 2016)
- Editorial Board – Physics Letters B (11/2009 – )
- Editorial Board – Journal of Cosmology and Astroparticle Physics (2010 – )
- Editorial Board – Physical Review D. (2016 – 2019)
- Editorial Board – New Journal of Physics (2006 – 2014)
- Editorial Advisory Board – Universe (2017 – 2022)