After submitting my resume online, I was asked to complete a 3-4 hour (read: 5-10 hour) design test. If the expectations of the assignment were vague, the HR representatives who I made attempts to communicate with were even vaguer. I found it very strange that I was asked to give Yelp a multi-hour investment of my time without so much as the reciprocal investment of a phone call. Yelp wouldn't even give me any feedback on the project which I had invested many hours into. Overall, a very negative interview experience.