Marine engineers are responsible for designing, maintaining, and repairing the mechanical systems on ships and boats to ensure safe and efficient operation. They work to keep pumps, propellers, and other equipment functioning properly throughout long journeys. Marine engineers typically need a bachelor's degree in fields like naval architecture, marine engineering, or mechanical engineering, along with skills in technical problem solving and communication. Salaries range from $66,000 to over $100,000 depending on experience and location. The job outlook for marine engineers is projected to grow 7-13% over the next decade as the field expands.