Estelle Maudet focused on stabilizing the search endpoint behavior in the opendatateam/udata repository, addressing a regression related to query parameter handling. She reverted a previous fix to restore established behavior, prioritizing backward compatibility and minimizing the risk of client-facing issues. Working primarily with Python and leveraging her expertise in API and backend development using Flask, Estelle ensured that existing clients would not encounter unexpected changes. She documented the rationale behind the change and outlined a plan for safer, incremental improvements. Her work included targeted regression testing and thorough code review, reflecting a careful, maintenance-oriented engineering approach.