From the initial communication with the HR person to the offer, the process took about 9 weeks. For some reason after the initial email exchange, the communication dropped off and finally was restarted with my efforts (incl. reaching out to the HR person's boss) after some 6 weeks. From the moment we restarted our exchange to the offer, the process took less than 3 weeks and consisted of: 1) phone interview with HR, 2) in-person interviews with the entire team, inluding AEs, ASs and the local practice head and 3) writing/grammar test. The interview process itself, if detailed, was very straightforward.