Here are a few areas of specialization for engineers from What Can I Do with this Major? - Engineering:
Aerospace: Includes the development of technologies for use in aviation, defense, and space exploration.
Biomedical: Combines engineering and biomedical sciences to study and develop tools, techniques, and products to improve human health.
Chemical and biomolecular: A combination of chemistry, physics, biology, and engineering is used to solve problems involving the use or production of chemicals and biological systems to create new materials, increase efficiency, and lower cost.
Civil: A broad discipline that helps provide for communities through the establishment and improvement of services including construction, transportation, city planning, water, and energy.
Computer: Includes the design and development of computer hardware, software, and hardware-software integration.
Electrical: Applies engineering principles to the creation and production of electronic systems and electrical devices.
Environmental: Aids in the prevention and development of solutions to environmental problems.
Industrial: Focuses on the improvement of processes or systems by more effectively utilizing employees, products, machines, materials, and energy.
Mechanical: A broad discipline that incorporates research, design, development, manufacturing, and testing of mechanical devices.
Nuclear: Centers on research and development to derive benefits from nuclear processes.