Phone screen -> 4-hour in-person or virtual interview without any breaks. In the initial phone screen interview, it mainly involved basic questions to assess your knowledge, which is quite easy to pass. The next four-hour interview was long and weird, as they asked C++ questions when most ML frameworks and the role itself should be handled in Python. The first hour mostly covered behavioral and some technical questions, including a LeetCode problem about Priority Queues. The second hour focused primarily on reinforcement learning, reflecting the interviewers' experience, along with some convolutional questions. During the third hour, the interviewers seemed uninterested and repeatedly asked the same questions, mainly about convolutional networks and basic C++ topics. The final round was almost entirely C++ questions—make sure to learn different types of pointers and note that they are very focused on garbage collection and memory management. They also gave a function and asked how you would use it across different files, though I don’t remember the details clearly. Overall, it took a week for them to send a rejection. This was a very bad experience, as they initially considered me for a Software Engineer role and later for a Machine Learning Engineer, which is not a good approach, especially since they only asked Python questions despite the role being in Machine Learning.