1) Phone screen, which included a design question 2) Medium difficulty take-home question 3) All day onsite where you're given a problem for the entire day Both the phone screen and the technical take home question were great. However, the onsite was a completely different experience. The interviewer quickly described the question and didn't really help me when I asked questions. In addition, he was very condescending when I was trying to setup the project and run the boilerplate code. When I needed some help getting things running he was really rude and expected that I could just Google everything and figure it out. During an interview, you don't really have time to waste so it was a really stressful process. I was left trying to get the boilerplate code running for an hour. After about an hour, he came back to check on me to hear my thoughts about the algorithm I had come up with. I explained my ideas and all he said is that it's suboptimal. When I asked if I was on the right track he offered no help and no suggestions. Overall just an arrogant tone. At the end of the day there is a bug bash where you have the opportunity to fix your code. I've interviewed with 20+ companies ranging from Google, Facebook, Amazon to much smaller companies. All of my previous experiences were positive whether or not I got an offer. I think Heap looks for a certain type of candidate. One that can code out a complex algorithm with no help gets things running. As another interviewer pointed out this probably leads to a homogenous workplace.