Mechanical engineers focus on how things work and see the world as parts in motion—they research, design, and develop a variety of products ranging from engines, turbines, and generators; to refrigeration and air-conditioning systems; to medical devices; to elevators and escalators.

Mechanical engineers will research the feasibility, design, operation, and performance of mechanisms, components, and systems. They plan and manage projects; prepare material, cost, and timing estimates; and design specifications for machinery and systems. They supervise and inspect the installation, modification, and commissioning of mechanical systems at construction sites or in industrial facilities, and they will develop maintenance standards, schedules, and programs to provide guidance to industrial maintenance crews. Mechanical engineers will investigate mechanical failures or unexpected maintenance problems and determine solutions.