First round: short call with HR and then online technical assessment with limited time, which I did pretty well. Second round: recruiter reached out again, asking if I could do a second online test. This was pure coding and included medium level leetcode challenges with limited time. Both rounds were about 3 hours long. Third round: was invited for onsite interview just to get a rejection because I didn't meet technical requirements for a position. Engineer clearly knew that I will not be hired (based on second round results) and even dodged answering some questions about a position.

Standard. Was interviewed by 2 other people as well as an assortment of other interviews (telephone, email questions). My main issue was with how long the entire process took (approximately 2 months for 2 roles).