TESSON Sébastien has extensive experience in the construction and real estate sectors, currently serving as Directeur technique at Cogedim since September 2019. Prior roles include Ingenieur Appels d’Offres at PROMOGIM from April 2018 to September 2019 and Chargé d'Operations at Pierres et Territoires de France Alsace, where responsibilities included managing real estate projects from permitting to after-sales service. Additionally, TESSON held the position of Chargé d'Affaires at Groupe Qualiconsult from July 2006 to August 2011. TESSON holds a Diplôme d'ingénieur in building from ESITC de Metz, obtained between 2006 and 2010.