AWS Lambda is a serverless computing service that runs code in response to events without provisioning servers. It automatically handles scaling, fault tolerance, and resource management. Behind the scenes, Lambda uses containers to run functions on demand. It integrates with AWS services like S3 and API Gateway, making it ideal for building scalable, event-driven applications. https://statushindime.com/how-aws-lambda-really-works-behind-the-scenes-from-trigger-to-execution/