Worked on enhancing authentication reliability in the menloresearch/litellm repository, focusing on Azure Active Directory integration for backend cloud services. Addressed a critical bug by ensuring the ManagedIdentityCredential received the correct client ID, which improved token provider stability in Azure deployments and CI workflows. Refined credential type selection logic by replacing an if statement with elif, resulting in more robust authentication flows and reducing the risk of credential-related outages. Documented and maintained these changes to support ongoing reliability improvements. Utilized Python and leveraged expertise in authentication, Azure AD, and backend development to deliver targeted, maintainable improvements to the authentication path.