• Initiated build-out of major AWS environment in China, crafting permissions and policies for four key roles, enhancing security posture and reducing threat landscape• Implemented AWS CloudFormation StackSets, IAM, Lambda, CloudWatch, and S3 for policy and role deployment, reducing deployment time by 30%• Translated rule template generation scripts from bash to Python using Boto3 SDK to remove need for packages not available in the China environment, reducing script runtime by 30% and enhancing AWS service interfacing• Implemented Principle of Least Privilege across all roles using AWS IAM guardrail policies, reducing cloud environment threats by 15%