Mechanical engineering—including R&D, product design and development
Specialty and custom machine design
Mechanical systems design and analysis
Fluid power systems design and analysis
Design for six sigma/ design for manufacturing and assembly (DFSS/DFMA)
Failure modes and effects analysis (FMEA)
To become licensed, engineers must complete a four-year college degree, work under a Professional Engineer for at least four years, pass two intensive competency exams and earn a license from their state's licensure board. Then, to retain their licenses, PEs must continually maintain and improve their skills.
A century ago, anyone could work as an engineer without proof of competency. Now every state regulates the practice of engineering to ensure public safety by granting only Professional Engineers (PEs) the authority to sign and seal engineering plans and offer their services to the public.