ERARD Guillaume serves as the Directeur Administratif et Financier at HomeExchange since September 2018, where the organization is recognized as a global leader in home exchange and is part of the #Next40 selection for 2019. Prior to this role, Guillaume held positions including Responsable administratif et financier at Travel Technology Interactive, where responsibilities encompassed business plan development and budget monitoring, and Contrôleur de gestion at BIOASTER, focusing on budgeting tools and dashboard development. Additional experience includes roles at Sanitéo as a Comptable and at ISEOR as an Assistant comptabilité / contrôle de gestion, emphasizing comprehensive accounting and financial control. ERARD Guillaume holds a Master2 in International Management from iaelyon School of Management and various certifications in accounting and management from respected institutions.