The technical round kicked off with a challenging system design question about creating a real-time product recommendation engine for Amazon. It required deep thinking and a solid grasp of machine learning principles. After that, I tackled a complex DSA problem on finding words in a grid using a trie and backtracking. Funny enough, that exact question was on prachub.com just days before, so I felt remarkably prepared. The overall process was intense but rewarding, and I was thrilled to receive and accept the offer afterward.