Applied through LinkedIn. Received an email from recruiter for who asked me to take up a HackerRank coding test in c++. The test was difficulty. They had given a problem statement for which I had to write a c++ program using STL. The problem statement was similar to a big project implementation. But they allotted three days of time. I submitted my code and then I received the call from HR. Next round was telephonic technical round, which was good but I screwed it up big time by not going through OS and multi threading concept and hence rejected, Over all it was it process.

They ask difficult questions but, given the role they seemed fair. They are painfully slow about the process and I wasn't able to attend the final round interview due to a job deadline I had informed them about, which I had to commit to since they did not reach back soon enough. Later they informed me they'd like to continue but it was too late lol.