Worked on the nammayatri/nammayatri repository to deliver scalable backend features focused on data quality and operational efficiency. Developed a batch-capable Vehicle Seat Layout API Upsert, enabling efficient processing of multiple seat layout updates in a single operation. Enhanced the Public Transport Data API by implementing deduplication logic to filter out duplicate route codes, which improved data integrity and reduced unnecessary processing. Addressed a data consistency issue by updating driver details using booking IDs, ensuring accurate booking records. Utilized Haskell and YAML for API development and database management, demonstrating a methodical approach to backend engineering and robust data operations within the project.