Developed and integrated Cognito-based user authentication for the aws-samples/amazon-bedrock-samples repository, replacing the legacy username and password flow with a secure, scalable solution. Leveraged AWS CDK and TypeScript to introduce a CognitoAuth construct, which was incorporated into the project’s deployment pipeline as Infrastructure as Code. The web service was updated to rely exclusively on Cognito for authentication when enabled, centralizing identity management and reducing the attack surface associated with password-based access. This work enhanced both security and scalability for the application, demonstrating a focused approach to modernizing authentication workflows using cloud-native tools and best practices in TypeScript development.