Technician
Concept · Stellaris 4.5.2
Technician in the Stellaris encyclopedia: Technicians produce Energy Credits.
Technician in the game's words
The encyclopedia entry as the game shows it in its tooltips; underlined words open their own entry or page here.
Technicians produce 
Energy Credits.
Power plants require plenty of warm bodies to operate equipment and oversee operations.
Entries that mention Technician
Source: common/game_concepts (concept_technician, also concept_technicians) and localisation/english, Stellaris Cygnus v4.5.2 (9776).