Worked on the 0xPolygonMiden/miden-client and miden-base repositories, focusing on targeted improvements to error handling and transaction processing in Rust-based blockchain systems. Enhanced error reporting for ClientError::RecencyConditionError by refactoring output to include detailed messages, which improved diagnostic clarity and maintainability. In miden-base, addressed reliability in transaction execution by ensuring advice data was loaded before processing and refactored account data handling for consistency across components. Leveraged skills in Rust, smart contracts, and transaction processing to deliver concise, maintainable changes that improved system reliability and debugging efficiency. Work demonstrated depth in focused, high-impact enhancements within a short timeframe.