Khedidja Allia is a professor of Chemical Engineering and Research Director at the University of Sciences and Technology (USTHB), Algiers, where she is involved in teaching, research, and supervision of students at different levels (Ph.D., Masters) after being involved at the National Polytechnic School, Algiers (ENP). She served as Director of Higher Education in the Ministry (MESRS), Director of the Industrial Chemistry Institute (USTHB) and Head of the Chemical Engineering Department at Ecole Nationale Polytechnique, in addition to having chaired the scientific councils of the Industrial Chemistry Institute (USTHB) and the Chemical Engineering Department at ENP. She coordinated the commissions for the higher education reform and for the training adequacy in Industrial Chemistry. She chaired the Maghreb Equivalence Systems Commission and the PURAQ (the Pole of University and Research Algerian-Quebecois). She was a member of the American Institute of Chemical Engineers (A.I.C.H.E) and is a member of the ANEE (Arab Network for Environmental Ethics) and a founding member of AFCARE (Association of Women Managers). She chairs the Algerian Scientific Association for promoting Engineering Sciences TAHENDUS and is a member of the Advisory Committee of the Bioethics Arab Region Network since 2013. She is a founding member of the Algerian Academy of Science and Technology and a Fellow of the Pan-African Scientific Research Council.