A Nanotechnology Engineer works with the smallest fragments of science. They look to make new discoveries that can change the face of health, science, technology, and the environment on a molecular level. A Nanotechnology Engineer may work on a range of tasks including storing and altering cells and molecules to develop tiny pieces of new technology. Some of their main responsibilities include creating prototypes, creating powders to enrich food and medicines, studying fragments of our DNA, and manipulating cells and proteins within the body.