A Python developer is a programmer that works in the Python scripting language to create server based code for web pages and other applications. They are usually involved in writing back-end components of the website such as connecting it with third-party web services through application programming interfaces. They support the user-facing developers of a website by integrating their work with supporting components.

Because Python is a versatile language it is also used in machine learning, implementing AI, scientific computing and academic research. Python is widely used by companies such as Google, Netflix and Spotify to power their back-end services to provide recommendations for playlists. While Python is relatively easy to learn it is powerful and can be used for data analysis, automation and implementing machine learning. It is often used, for example, to manage large datasets and migrate them for machine learning processes.