Developed and delivered a per-user chatbot experience across both backend and frontend for the source-academy repositories, focusing on robust conversation management and interactive developer tooling. On the backend, implemented logic to enforce a single active conversation per user, with explicit error handling and null-safety using Elixir and the Phoenix framework. On the frontend, built features in React and TypeScript to support unique message identification with UUIDs, interactive code snippets, and improved chat initialization and UI performance. Updated tests and refactored components to ensure reliability and maintainability, resulting in a more robust and user-friendly chatbot interaction for end users.