Worked on strengthening Electrum integration within the BlueWallet/BlueWallet repository to ensure safe handling of unconfirmed mempool data and prevent runtime crashes. Addressed a bug by making confirmation fields in ElectrumTransaction optional, allowing the application to gracefully process unconfirmed transactions. Applied TypeScript’s type safety features, including nullish-coalescing guards, to critical call sites and refactored timestamp logic for consistency. Exported types to support regression testing and expanded unit tests to verify correct handling of mempool-shaped objects. Focused on improving code reliability and user experience during wallet operations, leveraging skills in TypeScript, testing, and type safety throughout the development process.