Worked on the oracle/terraform-provider-oci repository to address a critical reliability issue affecting multi-tenant OCI Identity Policy management. Delivered a targeted bug fix by introducing per-tenancy synchronization using mutexes in Go, ensuring that policy mutations are serialized and preventing NoEtagMatch failures during concurrent operations. This backend development effort improved the stability of policy deployments in multi-tenant environments, reducing flakiness and enhancing CI reliability. The solution demonstrated proficiency in Go concurrency, multi-tenant architecture, and rigorous testing practices. All changes were managed through Git-based workflows, reflecting a methodical approach to code review and validation within the Terraform provider ecosystem.