Initially, I had a phone screen. The interviewer asked me the same questions that other candidates received. She was pleasant and conversational, and she told me all about Yelp and how great it is to work there.

After passing the phone screen, I had a Skype interview where I had to code into a shared screen. I chose PHP (perhaps I should have chosen Python) to implement a min stack. I finished the code to the interviewer's specifications and then answered the usual general questions.

The interview went well, and I received an email the next day stating that they had received positive feedback on my performance and inviting me for another interview. I was very happy. Since I had a final exam that day, I set the email aside to respond later. Four hours later, I received another email asking me to disregard the previous one, "thanking" me for my time, and stating they were unable to move me forward. Typical rejection nonsense.

I would have simply dismissed this as a one-time error if it hadn't happened to another candidate. Shame on you, Yelp. Getting people's hopes up and then dashing them. Very unprofessional. Honestly, I would have been more upset if I didn't already have an offer from Google.

So yes, Yelp, that's your loss.

What port is used for the Internet Protocol?