Maël Guennou defended his PhD at the Ecole Centrale de Paris (now Centrale Supélec) in 2007 on domain structures of piezoelectric relaxor-based single crystals. He then spent three years in Grenoble, working on high-pressure phrase transitions in model perovskites, and one year in Prague working on lead-free piezoelectrics. In 2013, he joined the Luxembourg Institute of Science and Technology (LIST) where he worked as a researcher for 6 years, working on ferroic transitions, domains walls, and advanced uses of Raman spectroscopy. Since January 2019, he is an assistant professor in the . Physics and Materials Science Department at the University of Luxembourg