If you're an engineer, the best way IMHO is to work with other engineers on a trial basis or tiny project if you can. Interviews are usually of low utility, especially non-engineers doing the hiring or interviews that don't delve into real engineering problem-solving. You will develop a better gut sense and know good engineers when you see them: relentlessly resourceful, picks-up concepts fast, asks good questions, cleverly pragmatic, anticipating "gotchas" and hopefully bearable/approachable.

PS: "10x" seems like a buzzword blogger fashion than anything useful.