During December 2025, Ramac Jayaram delivered cross-language AWS credential resolution flexibility for the aws-samples/amazon-nova-samples repository. He enhanced the TypeScript, Java, and C# implementations to support multiple credential sources, making the AWS profile optional and enabling use of environment variables, IAM roles, and AWS CLI configurations. By removing hardcoded credentials and implementing provider fallbacks, he improved both security and deployment flexibility. Ramac also updated documentation and code examples to ensure consistent credential handling across Nova Sonic v1 and v2, reducing onboarding friction. His work demonstrated depth in AWS SDK usage, credential management, and full stack development across multiple languages.