Three part interview that went the distance. First was a very brief interview with the company recruiting team. Second was a one hour technical interview with two coding questions, followed by behavioral questions and an opportunity to ask about the company. Third was an onsite interview, four people over the course of four hours. All had a technical side with whiteboarding, ranging from easy to fairly difficult. I was able to answer all of their technical questions correctly within the allotted time, and often had discussions about the company as well. Some were more direct and others very personable, just depended on the interviewer. At the end of the final interview, the interviewer let me know that the next day they would have a meeting to discuss the interviews and I would hear back with "yay or nay" by the end of the day. At this point it was a fairly pleasant experience. Several weeks later, I never heard back from them. I tried reaching out by email and eventually by phone, and was ignored on all fronts. I can understand going with another candidate or being underqualified, but either way there was a given expectation that feedback was going to given quickly. To hear nothing back and to be ignored is just unprofessional and a waste of time. I would be afraid that this type of behavior extends into company.