Worked on enhancing the Swift API within the apache/opendal repository, focusing on expanding support for large object workflows, metadata management, and security features. Leveraged Rust and Docker to implement SLO multipart uploads for objects over 5GB, bulk deletion of up to 10,000 objects per request, and HMAC-signed TempURL presigned URLs with multiple algorithms. Improved data handling by forwarding standard HTTP headers during write operations and supporting conditional request headers for reads and stats. These backend development efforts increased throughput, reliability, and flexibility for cloud storage integration, addressing critical capability gaps and enabling more robust Swift storage operations in production environments.