Often their work is the link between a scientific discovery and its application. Engineers design machinery, products, systems, and processes for efficient and economical performance. They design industrial machinery and equipment for manufacturing goods and defense and weapons systems for the Armed Forces. Many engineers design, plan, and supervise the construction of buildings, highways, and rapid transit systems. They also design and develop consumer products and systems for control and automation of manufacturing, business, and management processes.
Engineers consider many factors in developing a new product.
This process applies to products as different as computers, gas turbines, generators, helicopters, and toys. In addition to design and development, many engineers work in testing, production, or maintenance. They supervise production in factories, determine the causes of breakdowns, and test manufactured products to maintain quality. They also estimate the time and cost to complete projects. Some work in engineering management or in sales, where an engineering background enables them to discuss the technical aspects of a product and assist in planning its installation or use.