Worked on the tokio-rs/axum repository to enhance reliability and observability in backend systems, focusing on error handling and structured logging for user creation workflows. Using Rust, the developer restructured logging layers to ensure that error logs are consistently prefixed with request context, improving the visibility of user creation failures and streamlining debugging processes. No new user-facing features were introduced during this period; instead, the work prioritized maintainability and faster mean time to resolution by enabling more actionable log data. The approach maintained system stability without introducing breaking changes, emphasizing robust backend development and effective error triage through improved log quality.