Anything else is a waste. It's a small wonder, since the engineers on the starship Enterprise are portrayed as heroes, occasionally even mating with aliens. This is much more glamorous than the real social life of an engineer. Dating is never easy for engineers. A normal person will employ various indirect and duplicitous methods to create a false impression of attractiveness.
Engineers are incapable of placing appearance above function.
Fortunately, engineers have an ace in the hole. Male engineers reach their peak of physical attractiveness later than normal men, becoming irresistible erotic dynamos in their mid thirties to late forties. Bill Gates MacGyver Etcetera. Female engineers become irresistible to male engineers at the age of consent and remain that way until, oh, about their clinical death. That's why it's a good idea to keep engineers away from customers, romantic interests, and other people who can't handle the truth.