There was 3 parts interview parts. 1 with HR, 1 with Hiring Manager, 1 with Engineer. In addition, there was an evening presentation and a chance for candidates to meet employees of the company. I made it to the last round, however there was no answer nor response from the company. They didn't get back to me with a response that they decided to go with another person. It was very unprofessional as they brought me in 4 times total but could not respond with an answer.