Houssem Kahli obtained their master's degree in Xenobiotics and Toxicological Risk (2013) at the University of Badji Mokhtar (Annaba ; Algeria), followed by a Franco–Algerian Ph.D. between the University of Bordeaux (France) and University of Annaba (Algeria). This thesis, which they defended at the end of 2022, is entitled "Characterization of the accumulation of metallic trace elements in three species of the genus Atriplex and in Pseudomonas fluorescens as well as the study of their repercussions on certain biochemical parameters of these species". They, currently, manage their own company (created in 2022), which specializes in environmental consulting, depollution and other waste management services (registration with the GTC commerce of Bordeaux, France: 904 386 216 R.C.S. Bordeaux).