Arun Swarnam developed Bring Your Own Certificate Authority (BYOCA) support for the oracle/terraform-provider-oci repository, enabling integration of externally managed root and subordinate CAs into OCI Certificates. He introduced new variables, resources, and issuance rules to govern certificate issuance and validity durations, allowing customers to implement policy-driven certificate management and enhance security compliance. Arun’s work leveraged Go, Terraform, and API integration skills to extend the provider’s capabilities, supporting external PKI workflows and reducing reliance on internal PKI systems. The feature was delivered without reported bugs, demonstrating a focused and well-executed engineering effort that addressed complex cloud infrastructure requirements.