A CAD engineer is a highly skilled technician that works with computer-aided design (CAD) computer software. In this career, you specialize in designing complex buildings, machinery, and even automobiles using programs like AutoCAD. You may work with both two dimensional and three-dimensional designs. 2D modeling is referred to as surface modeling, as opposed to solid modeling, which is the 3D approach. Your job duties include creating detailed designs on your computer, translating design requirements into a finalized design specification, and presenting your designs to customers and management.