Worked on the PolyhedraZK/Expander repository to strengthen public inputs handling by delivering a refactored Public Inputs Binding API and addressing a critical bug in the verifier’s deserialization logic. Applied Rust and backend development skills to implement a DRY approach, introducing a dedicated method for binding and validating public inputs, which reduced code duplication and improved maintainability. Enhanced the verifier’s deserialization path with robust error handling and validation, preventing panics and improving security and correctness. These changes established a more reliable foundation for future feature development, focusing on cryptography, algorithm design, and safer production usage within the Expander codebase.