Last month I've given SDE-II Interview at Amazon. Below is my interview experience for same.

Application

• Directly applied on career portal
• Got OA next day. Completed same day
• Got Interview call next day and scheduled first round 1 week after that

OA

Don't remember the questions

• 2 DSA Questions - (Easy to medium level)
• Given a full stack project based on backend framework you select and a list of bugs. You've to go through code and find and fix the bug. AI was also provided for this question but it was kind of useless, it won't even help to understand the codebase and search something inside it.
• Some behavioral type design choice questions

Round - 1 (DSA)

2 easy - medium level DSA Problems were asked in this round

• LC 16 - 3Sum closest : I was able to provide 3 approaches with thier space and time complexity along with explaination and dry run to prove my intuition. Constraints: n upto 10^3

  • Brute force $O(N^3)$ approach
  • Binary search based $O(N^{2}logn)$ approach
  • Two pointers base $O(N^2)$ approach

• LC 305 - Number of Islands II : Same as previous question I was able to provide 2 approaches. Constraints same as origin problem.

  • Brute force $O(n^2\ast q)$ approach
  • DSU based $O(q+n^2)$ approach

• Typical tell me about a time XXXX LP questions

Verdict : Rejected