Marc Pérez Casas holds a doctorate on slum upgrading and prevention of informal settlements. He has worked with the World Bank, UN-Habitat, Inter-American Development Bank, and SNV, leading urban development projects across Latin America and Asia. His expertise spans infrastructure, urban services, spatial and strategic planning, climate resilience, social and affordable housing, municipal finance and governance, water and sanitation, solid waste management, carbon markets, and smart urban systems. A skilled public speaker, he emphasizes leadership, collaboration, and teamwork to deliver impactful urban solutions.