1. call with hr pre screen
2. few days later call with 2 techs
3. few more days later another call with 2 senior techs
The whole interview process wasn't all that difficult no real technical questions just a lot of tell me about... type questions.
after third interview received a email stating that an offer letter was going to be sent then it changed into I sent the email to a wrong person You're not getting an offer but you're a finalist requested an update on status 2 weeks after initial interview receive no response until the third day that stated an automatic message had told me I was declined.