Mechanical engineering involves several disciplines including applied mechanics, design engineering, mechatronics, and technology and society. Technology and society examines relationships between technology and social issues. Mechatronics combines mechanics, electronics, and software. Design engineering uses CAD and other design programs. Applied mechanics incorporates experimental and computational methods. The field offers various career opportunities at companies like Raytheon and Aerotek requiring a mechanical engineering degree and design software proficiency. The average salary is $78,160 annually and job growth is projected to be 9% through 2020.