Worked on safety-critical improvements and reliability enhancements across the GaloisInc/cryptol and GaloisInc/crucible repositories. Delivered a hardened Vec<T> export path in cryptol by refactoring vector receipt logic to use push() and correcting length handling, which removed unsafe Rust code and improved memory safety for downstream consumers. In crucible, focused on strengthening error handling and debugging by introducing configurable exception context, clearer stack traces, and improved error reporting, while also addressing edge-case gaps in symbolic evaluation tests. Leveraged Rust, Haskell, and Docker, applying skills in backend development, data serialization, and functional programming to deliver robust, maintainable solutions.