Technician

A technician was a person (often a crewman) trained in a specific process, often of a technical nature.

In 2364, sensor technicians were dispatched to work on a "glitch" with the USS Enterprise (NCC-1701-D)'s sensor readings that were indicating there was something in orbit, despite the fact nothing appeared on the viewscreen. 

In 2367, Vagh requested that his own technicians be allowed to confirm Captain Picard's claim that a Federation phaser rifle had been charged using Romulan technology. 

In 2370, Deela, an official at the Tozhat Resettlement Center, complained that the center's computers didn't work, and a technician hadn't arrived since they were not a top priority.