Marchelli has a diverse background with deep expertise in strategy and transformation. She's been an advisor to senior leaders for global transformation initiatives across dozens of Fortune 500 companies and is currently the Global Head of Strategic Initiatives, Analytics, and Integration at Citi.

Before joining Citi, Marchelli worked at Pinterest, leading the People Strategy and Analytics team. Facebook leading a global HR Job Architecture and Competency model transformation, and at Capital One leading cross-company external affairs strategic initiative.