Chemical engineer internship opportunities allow students the chance to undergo on-the-job training and gain experience in the field of chemical engineering under the supervision of a professional chemical engineer. Interns may be undergraduate students or recent graduates. Your duties as a chemical engineer intern vary, depending on the details of the program in which you participate. General responsibilities can include building computer models for projects, performing research experiments with chemicals, and coming up with and testing manufacturing processes. Interns often collect and enter data for research or development purposes, document processes and outcomes during research and development projects, and other administrative duties as needed.