A member of the CMS collaboration since 2012, Paolo Gunnellini received his PhD degree in 2014 with a joint project between the University of Hamburg and the University of Antwerpen. He mainly worked in Quantum Chromodynamics with a special focus on multiparton interactions in proton-proton collisions. Author of several phenomenological and experimental papers, he presented his results in various international conferences. Before his PhD, he worked also in the NA62 experiment at CERN in Geneva and he took part in two summer student programmes: in 2008 at CERN, Geneva and in 2011 at DESY, Hamburg. Currently, he works as a researcher at DESY, Hamburg within the CMS collaboration, and is looking forward to analysing the new upcoming data from the Large Hadron Collider.