Stephen R. Pietrowicz focused on enhancing data and configuration management across multiple repositories, including lsst/lsst-texmf and lsst-sqre/phalanx. He improved author metadata accuracy by updating YAML-based records, ensuring reliable attribution and analytics downstream. In lsst-sqre/phalanx, Stephen migrated ATOODS and MTOODS configurations to the 10.0.0 standard, restructuring keys and simplifying the butler configuration to align with evolving project requirements. His work emphasized traceable, well-documented changes and reduced integration issues for future development. Leveraging skills in YAML and data management, Stephen delivered targeted updates that improved maintainability and consistency, demonstrating a methodical approach to incremental, high-quality engineering improvements.