Marwen Znagui is an accomplished methods engineer at Sparco since January 2023, with a robust background in technical management and quality assurance. Previously, Marwen served as the technical manager at GITS, specializing in surface treatment processes from January 2015 to December 2022. Marwen also held a role as a QHSE training manager at the Tunisian Engineering Group in mid-2016, delivering professional training on quality management according to ISO 9001, internal auditing, and health and safety regulations. Earlier experiences include optimizing sulfur ion removal at CERTE, industrial process simulation at I2E, and minimizing raw material losses during manufacturing at Delice Danone. Marwen holds a national engineering degree in industrial chemistry from INSAT and a baccalaureate in experimental sciences from Lycée Technique Nabeul.