Recruiter contacted me for Hiring event ( 3 months after applying through LinkedIn ). Three round of interviews. First round was with somewhat junior level, Asked a dynamic programming problem, and I started with Brute-force approach, interviewer interruptted right there and wanted to have most optimal solution in first iteration. Sort of negative, but I coded up pretty fast and it passed all the scenario. May be negative feedback second round was with somewhat senior engg, Asked problem and if time permit few other sub-problem. I solved this with recursion and sub-problem were solved as well with minor tweak in code. Theoritically explained another sub-problem solution and recruiter seemed impressed with approach and saying himself, he saw 'new' and 'interesting' way to solve this problem. After that some design problem, which I couldn't understand completely however almost gave right answer. My feedback for is strong positive Third round with Group Engg Manager, who talked pretty nicely and neatly. I could see authority overall. HE asked some abstract design problem, which I understood however couldn't code up properly. I feel thats where my candidature went downward direction. Got rejection email after a day.