Royal Engineer

Royal Engineer is the title bestowed upon Link at the beginning of Spirit Tracks.

Link begins the game as an Apprentice Train Engineer on his way to Hyrule Castle for the graduation ceremony where he will be given the title of Royal Engineer by Princess Zelda herself. During the ceremony, Zelda slips Link a note warning him about Chancellor Cole and asks him to meet her in private to help her find out the reason as to why the Spirit Tracks have begun to disappear.

The only other known character with the title of Royal Engineer is Alfonzo, a Master Train Engineer who is also Link's mentor.