AWS serverless architectures are essential for modern cloud applications but can face challenges without effective CI/CD automation, which is crucial for efficient function deployment, permission management, and infrastructure coordination. Implementing a structured CI/CD approach helps streamline AWS serverless delivery by automating infrastructure provisioning, validating event triggers, and preventing costly configuration errors. Challenges in serverless development include managing function lifecycles across multiple regions, optimizing for cold starts, and handling event source complexity. Tools like AWS SAM, LocalStack, and security scanning software play key roles in this process. CircleCI stands out in serverless development by offering specialized CI/CD tools that integrate with cloud providers, optimizing function performance, validating infrastructure as code, and ensuring security. This platform enables serverless teams to automate AWS deployments, optimize function performance, and manage infrastructure efficiently, thus aiding in the rapid and secure development of serverless applications.