What things do you see in someone walkng through your shop that makes you hire someone or tell the management in charge to hire that person?
To keep it simple, when I was hiring engineers, I would ask myself 3 questions:
1. Can they do the job?
2. Do they care about the job?
3. Can I get along with them?
Miss any one of those, and you're out.
I can remember those 3 things, and most of the qualities of a "dream employee" can be derived from them.