Over a three-month period, contributed to openbraininstitute/aws-terraform-deployment and openbraininstitute/entitycore by building secure AWS infrastructure and improving project maintainability. Enabled private DNS for AWS VPC endpoints using Terraform, enhancing secure access to services while resolving Secrets Manager disruptions through targeted configuration changes. Improved deployment reliability with idempotent S3 mount logic and enhanced onboarding by authoring comprehensive setup documentation. Refactored the entitycore codebase, reorganizing CLI scripts and updating dependencies to streamline development and future enhancements. Worked primarily with Python, Terraform, and Bash, focusing on infrastructure as code, code organization, and documentation to support stable deployments and efficient team onboarding.