This was one bad experience. I have interviewed at many places- big and small companies and experience at AirBnb is easily the worst. I applied online and HR called to schedule a phone interview. We went back and forth and they could not interview on the dates I had provided. I was going to be in SF for something else the next week and they suggested that I come onsite directly for onsite interviews as the phone interview dates were not working out. So I extended my stay (my own expenses as I am not a local candidate) and got ready for onsite interviews. When I went there, and asked for the agenda - the HR tells me - that its going to be just 1 interview - similar to a phone interview except that its going to be in person. I was shocked. I showed them the email where they confirmed me for onsite and they simply stated it was a communication mishap. This costed me heavily in terms of time and money. The HR seemed very careless and inefficient. As for the interview, the interviewer asked me a Dynamic Programming question (hard one) and said - he didn't care how I implemented it but just wanted a working code in 30 mins. I tried and was very close to the solution. I had a minor bug in the base case of my recursion. The interviewer just stood up at the 30 min mark and left abruptly. I came out and quickly tried the solution in my laptop. I was able to complete it and get it working in another 5 mins. But from the looks of it, there is no credit for implementation idea, thought process or any such thing. Overall, very negative experience.