Amazon

Amazon had a very robust, multi-stage interview process for their developer positions, consisting of a screening panel followed by a screenshare competency test. This was the most involved interview process I've experienced.

A recruiter reached out. The initial phone screening was completed within a week. The recruiter sent out materials to prepare for the interview. Online assessments were sent out. One medium and one hard problem. I solved both, but not all test cases

It was good that there were several questions based on C++ data structures and algorithms, database management systems, operating systems, networks, and OOP concepts. Some of the questions were project-based, relating to work done during college.