I applied through the Amazon website and was contacted within 15 days.

1. There was a HackerRank coding round.
2. After being selected, there were four interviews:
   • Two focused on Data Structures and Algorithms (DSA)
   • One on System Design
   • One on Machine Learning (ML) breadth

Each interview lasted 60 minutes, with 30 minutes dedicated to behavioral questions.

In the DSA round, they asked:

1. Create a BST from the preorder traversal of a tree.
2. Return a list of the next greater element.

In the system design round, they asked for creating an image search engine from text descriptions.

Overall, out of 4 hours:

• ML discussion was for half an hour.
• 1.5-2 hours were on vague behavioral questions.