Worked on the AllenNeuralDynamics/aind-metadata-mapper repository, focusing on codebase refactoring and quality improvements using Python. The main contribution involved renaming the U19 ETL class to SmartSPIMSpecimenIngester across multiple files, aligning the codebase with updated naming conventions to support future ETL enhancements. This refactor included code organization and style cleanups, such as adding newlines after imports and standardizing double quotes, which improved readability and consistency throughout the project. No major bugs were addressed during this period, but the changes reduced maintenance overhead and made onboarding easier for new contributors, laying a foundation for more scalable development practices.