The whole Interview process took 2 weeks approximately. Round 1/ Get to know kind of meet up. A person working as Sr manager appeared asked overall experience in terms of technical. Some scenario based questions like - why do you want to join us, what do you know about target etc.... Round 2/ data structure algorithms like knapsack, two pointers and DP. Some basics of spark architecture. Round 3/ Mainly focused on end to end pipeline of my project. System design and comparison between services. Round 4/ It was again a technical round. I talked to many candidates who are working in target and they told me that you get selected after 3 rounds. But in my case they scheduled one more round and in this I got rejected.