Worked on the automat-it/terraform-aws-eks-auxiliary repository to enhance security and flexibility for AWS EKS clusters by enabling granular IAM control for Karpenter IRSA policies. Introduced a new variable to allow specification of additional IRSA IAM policies, wiring this capability through both karpenter.tf and variables.tf. This approach provided users with the ability to define least-privilege permissions tailored to their needs, supporting compliance and operational best practices. The work was implemented using Terraform and HCL, leveraging AWS IAM expertise to deliver a targeted feature that improves policy management without introducing bugs, reflecting a focused and well-scoped engineering contribution.