A Code Data Framework (CDF) developer designs, implements, and maintains data processing frameworks that enable efficient and reliable data management. They write clean, maintainable code, ensuring that the data infrastructure is scalable and robust. They work closely with data scientists and analysts to understand data requirements, develop data pipelines, and optimize data retrieval. Their responsibilities also include troubleshooting and fixing bugs, improving system performance, and ensuring data security. They stay updated on the latest industry trends and technologies, integrating them into the data framework to improve functionality and user experience.