Thanks to biomedical engineers, people who have lost a limb can still be mobile and perform tasks such as driving, cooking or using a computer. Designing, building and testing prosthetic devices is one of the specialties of biomedical engineering, although the discipline is broad and includes many other activities.ou can become a biomedical engineer with a bachelorâs degree, although you may need a graduate degree to lead a research team, according to the U.S. Bureau of Labor Statistics.