A mechanical design engineer is a professional who designs and develops mechanical systems and devices. They also build prototypes for testing and functionality measurement. Mechanical design engineers collaborate with other engineers to do their job, as well as with fabrication teams tasked with manufacturing products.

Mechanical design engineers use complex mathematics and science to assist them in their work. They might also use elements of various kinds of engineering to work on certain projects. A mechanical design engineer may work on many different types of mechanical projects, such as ones involving engines for automobiles, planes, or aerospace. They most often work for private companies, but also may be employed by specific government agencies.

Mechanical design engineers need a variety of skills to properly perform their jobs. Some of these include analytical, communication, problem-solving, attention to detail, organization, critical thinking, and extremely strong specific skills associated with math and science. They also must be proficient with many kinds of engineering software design like AutoCAD, Rhino, and Solidworks.

Mechanical design engineers almost always at least have a bachelor's degree in mechanical engineering or another field of engineering. Many also have advanced degrees in these areas. Relevant certification is often needed to obtain the role of a mechanical design engineer.

(What is a mechanical design engineer?: Definition, career, and Overview 2022)