During March 2025, Baffour worked on the mozilla/bigquery-etl repository, delivering an upgrade to the android_app_campaign_stats analytics view. He refactored the SQL logic to reference the v2 version of the underlying table, enabling GCLID-based attribution and aligning data access with the latest schema. This update improved the accuracy of campaign analytics and enhanced downstream reporting for business intelligence dashboards. Baffour focused on a clean, review-friendly implementation using BigQuery and SQL, documenting the scope for future iterations. The work demonstrated a targeted approach to feature delivery, addressing evolving attribution requirements while maintaining maintainable code and supporting ongoing data pipeline improvements.