During November 2024, this developer refactored the staking module within the paritytech/polkadot-sdk repository, focusing on improving maintainability and clarity. The work involved removing all usages of pallet::getter and replacing them with explicit storage getter implementations, which reduced API ambiguity and made the codebase easier to understand for downstream clients. Comprehensive tests were added to validate correct data retrieval through the new storage getters, ensuring reliability and correctness. This effort leveraged skills in Rust, Substrate, and pallet development, demonstrating a methodical approach to refactoring and testing that addressed both code quality and long-term maintainability within the project.