Worked on enhancing backend robustness and scalability for election data processing in the kiesraad/abacus repository. Focused on preventing integer truncation by implementing safe type conversions using Rust’s try_from and enabling proactive linting for potential truncation issues. Refactored political group identifiers and candidate numbers to use u32, supporting larger datasets and reducing overflow risks. Emphasized backend development, data structures, and error handling to ensure the system could efficiently manage increasing election data volumes and concurrent operations. Utilized Rust and SQL to deliver a more reliable backend, addressing scalability challenges and laying groundwork for future growth in election data management.