Worked on the JeffersonLab/halld_recon repository to deliver a feature upgrade in the event reconstruction pipeline, implementing TimeBased Track Selection within the JEventProcessor_cpp_skim module. This transition from the previous WireBased approach introduced more flexible and tunable track selection criteria, supporting efficient event processing and facilitating future experimentation. The work involved C++ refactoring and careful documentation to align with the project’s reconstruction roadmap, enabling easier iteration on selection strategies. Demonstrated skills in C++, data analysis, and event processing, while collaborating across the repository to ensure maintainability and performance improvements in the track selection logic for ongoing and future development.