Worked on enhancing the opentofu/terraform-provider-aws repository by addressing reliability issues in S3 bucket creation against third-party S3-compatible APIs. Developed a two-level fallback mechanism in Go to handle MalformedXML errors during the CreateBucket operation, improving compatibility with endpoints such as OVH and Ceph RGW. The solution involved retrying the request by first removing tags and then stripping the CreateBucketConfiguration, ensuring successful bucket creation even when certain configurations were unsupported. Focused on backend development, API integration, and robust error handling, this work reduced deployment failures and support overhead for users interacting with non-AWS S3 services through Terraform.