AWS Dev Day on 'Building Generative AI Applications with Serverless' was an immersive event combining technical sessions, demonstrations, and workshops focused on integrating GenAI with Serverless architecture. The event covered essential AWS services including Amazon Bedrock, AWS Step Functions, and Lambda, teaching participants how to build, scale, and optimize GenAI applications using cloud-native services. Designed for developers, architects, and technical decision-makers, the program provided hands-on experience in creating autonomous AI workflows and implementing practical serverless patterns for GenAI solutions.