Worked on the ag2ai/ag2 repository to deliver a focused upgrade of the Cerebras integration, migrating support from the Llama 3.1 70b model to Llama 3.3 70b. This involved updating Python backend code to reflect new model naming conventions, revising configuration files, and ensuring that automated tests aligned with the latest model capabilities. Adjusted pricing logic to accommodate the updated model, supporting accurate cost forecasting for downstream users. Maintained compatibility within the deployment pipeline and prepared assets for validation. The work demonstrated skills in API integration, backend development, and model management, with an emphasis on targeted, maintainable improvements.