A mechanical engineer https://onlinefreelancejobs.ne....t/mechanical-enginee designs, plans, and simulates energy in a wide variety of environments. This includes alternative energy, natural gas, and machines. As a mechanical engineer, you will also plan the size, shape, and materials of machines and devices. Your job may require you to think about safety features. Listed below are the top skills for a mechanical engineer. They should be comfortable with making decisions. If you'd like to work in the manufacturing industry, you'll need to be comfortable making decisions.