For many jobs in the https://onlinefreelancejobs.net/mechanical-engineering-job/ mechanical engineering field, one's training can prepare them for a variety of responsibilities. For example, they may design a new automobile or determine the shape of a machine. They may also decide the best materials and manufacturing methods for a product. While this job is traditionally done by humans, some engineers work with computer programs. For example, a mechanical engineer who specializes in automotive design may also help automobile companies develop safer cars. Mechanical engineers are also expected to become more in demand in the coming years as new industries develop such technologies as biotechnology, materials science, and nanotechnology.