Civil engineering: Involves the design, construction and maintenance of large-scale-built environments. Electrical engineering: Involves any project where electricity is key to functionality. Mechanical engineering: Involves the production and maintenance of machines. Structural engineering: Involves the design, construction and safety of large buildings or structures such as bridges, dams or docks. Modern technology: Involves software development, appliances and computer development. Water systems and plumbing: Involves any water management systems, varying from domestic heating appliances to industrial waste management. Energy production: Focuses on more sustainable methods of producing energy, such as with wind turbines and solar panels.