A CS developer, typically involved in a course related to machine learning or advanced computer science topics, conducts research, designs algorithms, and builds models to solve complex problems. They analyze large data sets, apply statistical methods to extract patterns, and implement artificial intelligence technologies. They constantly learn about new tools and techniques in the field. The developer also collaborates with a team, shares findings, and may teach or guide others. They use programming languages like Python, Java, or R, and work with libraries such as TensorFlow or PyTorch. They often need to consider ethical implications of their work.