Applied for an iOS developer position. The first step was a 15-minute phone (Skype) screening with a Technical Recruiter. We discussed my experience and motivation for working at Yelp.

After that, she asked about 10 technical questions, covering algorithm complexity and data structures. Nothing too advanced – the same topics mentioned in other reviews. I also had the opportunity to ask questions about Yelp and the recruitment process.

At the end of the interview, she confirmed I passed to the next step, and we scheduled a 45-minute technical interview.

The technical interview was two days after the phone screen. It was a Skype video call with a Yelp iOS engineer. We used Coderpad.io for an online coding exercise, which was an anagram-related task. I could use my language of choice (though they prefer Python).

After my initial solution, the interviewer asked about its complexity and how we could improve it. There were also a number of simple iOS-related questions.

Again, it was time to ask questions about their workflow. The interviewer wrote down my questions, so be sure to have some interesting ones prepared!

Received a rejection email within one week.

Possible ways to improve coding problem solutions.