Marine engineering is the engineering of watercrafts, ocean systems, and ocean structures. After completing this degree, one can join a ship as an officer in the engine department and eventually rise to the rank of chief engineer. This rank is one of the top ranks onboard and is equal to the rank of a ship's captain. Marine engineering is the highly preferred course to join the merchant Navy as an officer, as it provides ample opportunities in terms of both afloat and ashore jobs.