I've worked and have been mentored by a lot of great engineers, they have a few things in common: 1. They all happen to be a bit older 34+ (early 30s being the

I've worked and have been mentored by a lot of great engineers, they have a few things in common: 1. They all happen to be a bit older 34+ (early 30s being the minimum) 2. They model their problems before writing code. 3. How they debug problems with a very workman-like, structured approach. 4. Write well and efficiently.