Worked on the hashicorp/terraform-provider-aws repository to deliver a security-focused feature enhancing the configuration of API Gateway REST API endpoints. Developed and integrated a new security_policy argument into the aws_api_gateway_rest_api resource, enabling users to specify TLS security policies directly within Terraform. Leveraged Go for provider development and AWS API integration, wiring the new argument through CreateRestApi and UpdateRestApi calls to utilize the SecurityPolicy field supported by the AWS SDK. This update aligned Terraform’s configuration capabilities with AWS security controls, streamlined the process of managing TLS policies, and reduced manual configuration steps for users deploying secure API infrastructure.