Worked on enhancing reliability for AWS-backed object storage within the Apache Arrow Rust ecosystem, focusing on robust checksum computation. Addressed two critical bugs by refining the gating logic for checksum calculation in both the apache/arrow-rs and apache/arrow-rs-object-store repositories. The approach ensured that checksums are computed only when necessary, taking into account sign_payload, skip_signature, and the presence of existing checksums. This reduced the risk of incorrect checksum usage and improved data integrity during AWS interactions. Utilized Rust and the AWS SDK, applying knowledge of checksum algorithms and signing semantics to stabilize and align cross-repository behavior for object storage operations.