Arist Kon focused on strengthening CI/CD security for the rudderlabs/rudder-sdk-react-native and rudderlabs/rudder-sdk-js repositories by addressing script injection vulnerabilities in GitHub Actions workflows. Using YAML and DevOps best practices, Arist refactored workflow files to replace unsafe string interpolations with environment-variable-based handling of branch names, SHAs, and deployment options. This approach reduced the risk of arbitrary code execution and improved auditability across both mobile and JavaScript SDK pipelines. Although no new features were added, Arist’s targeted bug fixes enhanced the security posture and standardized CI/CD processes, demonstrating depth in CI/CD automation and security engineering within a short timeframe.