They contact me via LinkedIn. Run 4 hours interview with 3 guys. run a 40 minutes with the hiring manager's manager. Received a email from the recruiter that I was hired and they will send me an offer letter. Never hear back from them again.

Quick and efficient. It did not take long until the interview was set up and carried out. Overall, the interview was about average difficult with some small side questions that were meant to get you out of your own order, but that is normal.