エンジニア
エンジニア · enjinia · JLPT N1 · noun
engineer
⚙️ エンジン (engine) + ~ア-er suffix = one who works with engines and machines
エンジニア is a loanword from English 'engineer', written in katakana. Its Japanese sound is close to エンジン (enjin, engine), a useful clue because engineers build and run engines and machines.