Over a two-month period, Astiwana contributed to the aws/aws-cdk repository by enhancing automation workflows and improving issue tracking processes. They updated GitHub Actions and Mergify configurations to ensure new team members were properly integrated into CI/CD pipelines, using TypeScript and YAML to automate contributor recognition. Astiwana also implemented a validation check for EKS cluster names, enforcing naming conventions and adding unit tests to prevent regressions. In a separate effort, they refined issue triage by introducing alpha AWS module labels, updating configuration files to support more accurate categorization. Their work demonstrated solid depth in DevOps, Infrastructure as Code, and CI/CD configuration.