Worked on the teslamate-org/teslamate repository to deliver a database indexing optimization focused on improving performance for large datasets. The approach involved replacing position indexes from BTREE to BRIN, which reduced memory usage and enhanced query efficiency. Developed comprehensive migration scripts in Elixir and Ecto to safely transition indexes, including rollback support to ensure data integrity. Updated project documentation and changelogs to clearly outline the changes and their impact. Collaborated closely with another contributor through a co-authored commit, emphasizing teamwork and code review. The work demonstrated strong skills in database management, performance optimization, and clear technical communication within the project.