Warp field engineer
A warp field engineer or warp engineer was an engineer who specialized in warp fields. 

Stron, a Vulcan stranded on 1950s Earth became frustrated with his life as a plumber. He found that being compared to the Stooge, Moe, was "intolerable" because he was a warp field engineer. ()

When Elim Garak, Benjamin Sisko and Odo were in Odo's brain, reliving life on Terok Nor, they were chosen by Quark, the Ferengi sarcastically stated "you three must be warp engineers," referring to their ability to follow directions. ()

See also 
 Warp field expert
 Warp field specialist
 Warp field theorist
Occupations
Warp