Geoffrey has 19 years of experience in planning optimization and AI, combining deep technical expertise with open-source leadership. He created OptaPlanner, the open-source engine that powers automated scheduling and routing for hundreds of thousands of employees, vehicles, and machines worldwide. Previously, he was a Senior Principal Software Engineer at Red Hat (IBM), where he led large-scale optimization initiatives and contributed to numerous open-source Java projects. At Timefold, he drives the company's technical vision and PlanningAI innovation, turning advanced optimization algorithms into real-world enterprise impact. A frequent international keynote speaker, he has presented from San Francisco to London and Buenos Aires to Tokyo, at events including Red Hat Summit, Devoxx, and KotlinConf. Geoffrey holds a bachelor's degree in Applied Computer Science from Hogeschool Gent.