Fourth engineers play an essential role in the engine department of offshore supply vessels, tankers, and marine energy transport operations. They assist in monitoring and maintaining propulsion systems, auxiliary machinery, and electrical components to ensure smooth vessel performance. Their duties include conducting routine inspections, performing minor repairs, and supporting senior engineers in troubleshooting mechanical issues.

This role requires a solid foundation in marine engineering, hands-on experience with engine room systems, and knowledge of international maritime safety regulations. Fourth engineers collaborate with chief, second, and third engineers to uphold vessel efficiency and reliability. A career as a fourth engineer offers a structured path for progression to higher-ranking engineering roles in the maritime energy sector.