Ioni Papaioannou is a building performance and sustainability specialist with over 13 years of experience in architecture, building science, and decarbonization. Her work focuses on helping organizations advance building and campus decarbonization through data-driven decision-making, automation, and innovative digital workflows. Throughout her career, Ioni has contributed to a diverse range of projects, including single-building performance assessments, central plant optimization initiatives, and large-scale portfolio decarbonization studies. Her experience includes applying building performance analysis, energy modeling, and digital tools to identify practical opportunities for reducing energy use, lowering carbon emissions, and driving measurable performance improvements. Ioni's expertise spans energy modeling, building performance optimization, and strategic decarbonization planning, helping clients navigate practical pathways toward a more resilient and sustainable built environment.