Worked on enhancing the parser diagnostics pipeline for the HelixDB repository, focusing on improving error clarity and maintainability in Rust-based backend systems. Introduced a targeted feature that rendered diagnostics with accurate source text, allowing developers to better understand compile-time errors. Subsequently refactored the data handling approach by removing the file_map in favor of direct access to the files array, which simplified the codebase and reduced future maintenance overhead. These changes reduced diagnostic noise and complexity, aligning with long-term goals for reliability and developer experience. The work demonstrated depth in Rust and backend development, emphasizing robust tooling and maintainable architecture.