Worked on enhancing token lifecycle management for GCP-backed object store clients in the apache/arrow-rs and apache/arrow-rs-object-store repositories. Focused on backend development using Rust, the work involved lowering the minimum time-to-live for GCP tokens to four minutes and introducing a backoff mechanism for token refresh operations. This approach optimized token caching and retrieval, reducing unnecessary refreshes while ensuring timely updates. The improvements increased the robustness, security, and performance of cloud token management across both crates. Emphasis was placed on aligning authentication workflows and maintaining cross-repository consistency, delivering business value through more reliable and efficient token management solutions.