An ASU (Air Separation Unit) Plant Operator is responsible for monitoring and controlling the equipment used to separate atmospheric air into its primary components, such as nitrogen, oxygen, and argon. They ensure efficient plant operations by adjusting process parameters, performing routine maintenance, and troubleshooting any issues. Safety, quality control, and adherence to industry regulations are key aspects of the role. Operators often work with control systems, compressors, distillation columns, and storage units to optimize production.