Abdennadher Ghassen is an electromechanical and naval architecture engineer with experience in energy saving, leadership, maintenance, and monitoring. He received a specialty diploma in naval engineering in 2014 from the Naval Academy in Tunisia. His professional experience includes serving as maintenance chief of two centers in Djerba and as head of various departments aboard patrol and fast patrol ships in the Tunisian Navy, where he was responsible for maintaining ship operability. He has skills in languages, computers, and mechanical engineering topics.