Worked on backend development for the plotly/dash repository, focusing on improving the reliability of health monitoring in deployed environments. Addressed a routing issue by correcting the health check endpoint to use the routes_pathname_prefix rather than the requests_pathname_prefix, ensuring that health checks accurately reflect the configured routing prefix. This change reduced false alarms during health monitoring and enhanced deployment consistency across different environments. The solution was implemented in Python, demonstrating careful attention to routing configuration and operational reliability. The work emphasized backend problem-solving and contributed to more robust health check mechanisms without introducing new features during the period.