Lajmi Fatma was born in Sfax, Tunisia, in 1986. she received her Baccalaureate in Mathematics in 2005 and her engineer of science and technology in production in 2010 from the Higher School of Science and Technology (ESSTT) of Tunis, then her master's degree in Automatic-production from the National School of Engineers of Tunis (ensit) in Tunisia. and Ph.D. degrees in electrical engineering from Engineering School of Monastir – Tunisia (ENIM). in 2019 at the Laboratory of automatic, signal and image processing (LARATSI). In 2021, she joined the laboratory: Networked Objects, Control, and Communication Systems (NOCCS) from national engineering school of Sousse ENISO. She has several years of experience on Scientific Research, Teaching and industrial projects. Since December 2015, she was an Assistant Professor then became an Associate Professor in 2019. Her current research interests include power electronics, electrical machines interest is the petri net, fuzzy logic robustness in the identification and control of nonlinear systems with application to diagnosis.