Engineer Villager (Immersive Engineering)

The Engineer Villager is a Villager added by Immersive Engineering, which spawns in an Engineer's House. They were removed in update 0.12-95 and were replaced by the Structural Engineer, Machinist, Electrician, Gunsmith, and Outfitter villagers.

These villagers can level up by doing trades with them. Once you trade with them a number of times, after you exit the trade menu an effect will show, which means they have levelled up and have more items to trade with. The new trading options they get are randomly taken from the list below.