* My work at the Tunisian Electricity and Gas Company (STEG) concerns the Techno-Economic Feasibility Studies of Alternative Energy Projects : Nuclear Power (LR and SMR), Hydrogen (Power to Power and Power to Gas), REN (PV, CSP, WIND), Coal-fired Power Plants, Storage...I am particularly involved in the Nuclear Power Project with the collaboration of the International Atomic Energy Agency (IAEA) through the following infrastructure issues : - Project Management - Technology assessment - Energy Planning - Economic and financing Assessment - Local Industrial Involvement - Technology Transfer - Procurement - National and international cooperationsI am also Chief Scientific Investigator (CSI) of Research Projects and Project Counterpart (PC) of IAEA Regional Projects.* During my studies at Ecole Centrale Paris (PhD and MSc) and my jobs in France (EDF and IFP) and in Belgium (Samtech and Sonaca) I had worked on Mechanical Modelling and Numerical Methods in Engineering. Applications: Nuclear structures, Wind Turbines, Aeronautics, Geology, Seismic applications..* Lecturer of Mechanics at "Ecole Polytechnique de Tunisie" (since 2010).* Lecturer at "Ecole Nationale d'Ingénieurs de Tunis" (ENIT): International Master Program on Renewable Energy Systems for Africa:TEchnology And Management" (IMPRESA-TEAM) whose Responsible is Prof Chiheb Bouden. Course "Optimisation, Modeling and Prospective Evaluation" (Since 2021).* Lecturer of Applied Mathematics at "Ecole Centrale Paris" (2003-2005).