Worked on improving reliability and correctness in backend systems, focusing on tracel-ai/burn and moltbot/moltbot repositories. Addressed robustness in autodiff operations by fixing a scatter crash and enhancing gradient propagation, ensuring accurate backpropagation across tensor operations in Rust. Improved test coverage and regression safety to support reliable model training workflows. In moltbot/moltbot, stabilized Discord Voice real-time consult flows by implementing robust input validation and error handling for malformed tool-call arguments, preventing crashes and surfacing meaningful errors. Leveraged Rust and TypeScript, with a strong emphasis on backend development, error handling, and comprehensive testing to deliver more resilient and maintainable code.