1. Initial phone screen with recruiter. Recruiter asked few questions on basic Java and time complexity of some algorithms to pass on to the hiring manager. 2. Four rounds of interview - 1st one with a principal engineer. Healthy discussion about experience and tech stacks used, then few questions on multi-threading and database. The three others rounds were sort of behavioral with one question on algorithm and the other scenario based. 3. Recruiter called and explained the reason for not moving forward. Reason seemed lame, but not recruiter's fault.