Amazon Sr. Software Engineer interview questions

I received an interview request from a recruiter via the company's Chime app for an SDE position. Excited, I joined with my camera on, as is the tradition these days. The recruiter didn't turn his on - ok, no big deal. We discussed the process in detail for some time and he stated that I'd need to complete two HackerRank questions by a deadline nine days in the future, but not to worry! He would equip me with all the details I needed to be successful, including links to sample HackerRank tests and LeetCode samples. I would get all this information today(!) so that I'd have the weekend to prepare since he knew how busy I must be. Even more excited than before, I waited after the call....and waited....and waited. No response. I contacted the recruiter via LinkedIn and email multiple times but received no response at all. Apparently Amazon has adopted the despicable recruiter policy of ghosting as well. I can only assume this was a bad apple, as every single other interaction I've had with Amazon has been amazing.

Tough interview. The first round was a basic tech questions and was pretty easy. Then they had tougher rounds where you had to demonstrate knowledge of coding and there was also a pair programming exercise. Eventually they moved to on-site, which was in Seattle. the on-site consisted of six rounds testing various technical and interpersonal skills. They are looking for a strong programmers who also have a very good handle on architecture, SDLC, and systems design.