Marine engineers and naval architects design, build, and maintain ships from aircraft carriers to submarines, from sailboats to tankers. Marine engineers work on the mechanical systems, such as propulsion and steering. Naval architects work on the basic design, including the form and stability of hulls.
Marine engineers and naval architects apply knowledge from a range of engineering fields to the entire water vehicles design and production processes. Marine engineers also design and maintain offshore oil rigs and may work on alternative energy projects, such as wind turbines located offshore or tidal power.