In this AWS re:Invent 2023 session, Balachander Keelapudi, Jonathan Luke, and Lee Gilmore discuss how City Electric Supply (CES) leveraged AWS Serverless for event-driven architecture and domain-driven design. They share CES's journey of modernizing their inventory management system using serverless technologies, event-driven architecture (EDA), and domain-driven design (DDD) principles. The speakers highlight the benefits of this approach, including increased developer agility, scalability, fault tolerance, and lower TCO. They detail the architectural decisions, implementation process, and the resulting improvements in efficiency and cost-effectiveness. The presentation offers valuable insights into how enterprises can leverage AWS Serverless to innovate rapidly and transform their legacy systems.