Daniel Dennett would beg to differ. He argues that evolution by natural selection is a sort of algorithm that does the work of design without any intelligence involved. This may seem like semantic quibbling, but however you define "design," the important point is that evolution operations sufficiently closely to design that many of the lessons apply.
And also, some of the lessons don't apply, so it's important not to take the analogy too seriously. In particular, evolution can't take the sorts of imaginative leaps that humans can, so each step along the evolutionary pathway must survive and out-compete the alternatives.
You might find this book relevant to your interests.