Peter Krieger is a professor at the University of Toronto where he also serves as an Associate Chair in the Department of Physics. He is an experimental particle physicist working on the ATLAS experiment at the Large Hadron Collider (LHC) at CERN, in Geneva Switzerland, where his research focusses on studies of the Higgs boson, searches for physics beyond the Standard Model, and detector upgrades for the High-Luminosity LHC that will begin operation around 2030. He has held a number of management roles in the international ATLAS Collaboration, and from 2015 to 2023 served as the Spokesperson of the ATLAS-Canada Collaboration. He has also served two terms on the Institute of Particle Physics (IPP) Scientific Council and as IPP Secretary Treasurer.