I received an introductory call from the Engineering manager (actually Director) who reviewed my resume. I was called for F2F. It was a full day interview. First round was F2F technical. For the second round, they set up a bridge with a developer with Asian accent (not sure) Taiwan or Singapore. - Third round was with a guy sitting in USA, perhaps the onsite developer The interview topics were from both fundamentals and relevant work done so far. - Questions from Hash map, bit vector and graph - Architectural questions from REST API design ideas, performance - Case based questions - Explored my familiarity with AWS, DynamoDB etc. The offer always takes long time to come by. Mine took more than a month. Some people get it too early because of influential hiring managers / account managers. There is a mandatory medical test that you've to undergo as part of your on boarding.