Soufien is a director at S&P Global Commodity Insights focused on energy technologies and hydrogen research. He is an expert in energy systems and a technical lead in the S&P Global Commodity Insights hydrogen initiative. He has extensive academic and industry experience in the energy field, from startups to large multinationals. Prior to joining S&P Global Commodity Insights, Soufien was a senior research and development engineer at L3 Open Water Power, a startup developing novel fuel cells for powering unmanned underwater vehicles. He also worked at General Electric's Global Research Center as a combustion test and computational fluid dynamics engineer. Before that, he was a research assistant in the Reacting Gas Dynamics Laboratory at the Massachusetts Institute of Technology, pursuing his doctoral studies on fuel flexibility in gas turbine combustion.

Soufien served in the French Naval Aviation, and he holds a Bachelor of Science in mechanical engineering with a minor in economics from Ecole Polytechnique, France, a Master of Science in energy engineering and science from Ecole des Mines de Paris, France, and a doctorate in mechanical engineering and computation from the Massachusetts Institute of Technology, United States.