
I'm a horny ENGINEER, Leonard.
The Big Bang Theory Season 2, Episode 20

Barry, we can't fight you tomorrow.
Our ENGINEER is incapacitated.
The Big Bang Theory Season 2, Episode 12

I'm an MIT-trained ENGINEER.
The Big Bang Theory Season 8, Episode 22

I could also be the ENGINEER who builds
the crossbow that kills Sheldon.
The Big Bang Theory Season 2, Episode 23

Well, look at you.
The little ENGINEER that could.
The Big Bang Theory Season 8, Episode 22