Juliette Cayer-Barrioz graduated in physics from the University of Grenoble in 1998 and in engineering from the Ecole Centrale de Lyon in 2000 before obtaining her PhD in Materials Science from Centrale Lyon in 2003 and her habilitation in 2011. Since 2005, she has been associated with the CNRS. Her research activities at the Laboratory of Tribology and Systems Dynamics (LTDS) focus on the dynamics of confined lubricated interfaces. Her multidisciplinary approach - based on unique experimental devices developed at the LTDS - combines physics, interfacial chemistry and mechanics, rheology and friction. She develops the research axis "Dynamics process probing" in the laboratoire d’excellence Sise-Manutech and many international collaborations. She is also a member of the scientific advisory board of the International Nanotribology Forum, and is Associate Editor of Tribology Letters. Her teaching activities at École Centrale de Lyon, and beyond, address the physics and chemistry of interfaces and the rheology of complex media.