David helps executive teams make marketing work harder to accelerate growth by aligning strategy, execution, and technology. With over 15 years of leadership experience, he has led large-scale marketing and transformation initiatives at global companies, including as Chief Marketing Officer at McDonald’s Switzerland and in senior transformation roles at Nestlé across 40+ markets. Today, David is the founder of Nexelen, working with boards and C-suites of growth-stage and scaling organizations to improve marketing performance, redesign operating models, and accelerate growth through AI and automation. In parallel, he is a multi-entrepreneur active in predictive AI and Web3 commerce, including wallet-based relationship management. His work has earned international recognition, including Effie and Smarties awards. A keynote speaker and conference moderator, David also hosts the "NeCXt: when Strategy meets Technology" podcast, guest lectures at business schools, and actively contributes to international tech and marketing communities.