There are 2 interviews. First with an engineer. where will be a C++ test and a DA & Algo test. Including non-basic C++ programming and basic DS & Algo test. Especially on graph DS. Overall the test is not difficult. Everyone with solid CS background can nail it. Better if you are familiar with compiler or deep learning. Second with the manager. Few technical questions. Most part is about personality and working experience. Both interviewers are polite and kind.