Over a two-month period, contributed to backend and data science initiatives across BerriAI/litellm and fiddler-labs/fiddler-examples repositories. Developed robust OpenTelemetry observability for the Litellm Responses API, enhancing traceability and compatibility with Pydantic models while stabilizing output transformation and refining tool call handling. Improved code quality through type checking, code formatting, and expanded unit testing using Python. In fiddler-examples, delivered a Google ADK Quickstart notebook that integrates with Fiddler, enabling rapid experimentation with a multi-turn agent and observability instrumentation. Focused on API integration, continuous integration, and notebook development to streamline onboarding and ensure reliable, maintainable backend systems.