Microsoft Senior Software Engineer interview questions

Interview process was fairly challenging. But, with a little practice I feel you can clear it. Have strong projects listed on resume and have a good system design knowledge. DSA asked is mostly easy-medium level.

Total waste of time * Applied online in November, only to get a response from a recruiter asking for my availability early January. * I answer them back and they disappear for 3 weeks. * I follow up and get a response from the hiring manager that they had some scheduling problems, then I receive an invite for an initial interview. * Since I am in Europe and they're in PST, the interview happens to be past-midnight on my side, so I ask if we could reschedule. * The next day I get an automated email that I am no longer considered for this position. No reasoning provided. Totally disrespectful.