Mechanical engineering jobs refer to positions within a company or organization that require knowledge and skills in mechanical engineering. Mechanical engineers design, develop, test, and maintain various machines and systems such as engines, robots, turbines, pumps, and other mechanical devices. They work in many industries including automotive, aerospace, manufacturing, construction, and energy production among others. The jobs may involve designing new products or improving existing ones, conducting tests to ensure the product meets performance standards, analyzing data from test results, developing prototypes, and overseeing the manufacture of products. Mechanical engineering jobs require a strong understanding of mechanical systems, materials science, thermodynamics, fluid mechanics, and other related disciplines.