What do Biomedical Engineers do? Biomedical Engineers work with mathematics, science, and medicine to invent or enhance various technologies that improve the function of the human body. Some biomedical engineers design computer programs and circuits for things like magnetic resonance imaging and X-ray machines. Others work with devices such as cochlear implants and pacemakers that are implanted directly into the body. The field of biomedical engineering even extends to the development of new kin