1p3a Experience · Mar 2026

Amazon SWE 2 Interview Experience and Rejection Insights

SWE OA Hard

Interview Experience

Will keep it short. There were 5 rounds in the process. 1st

OA 2 medium/hard DSA questions 2nd DSA Round: 1st question → Sliding window optimized approach (Brute force: recursion/DP). 2nd question →

Full Details

Will keep it short. There were 5 rounds in the process. 1st

OA 2 medium/hard DSA questions 2nd DSA Round: 1st question → Sliding window optimized approach (Brute force: recursion/DP). 2nd question → 2D DP.

Verdict +ve 3rd Round (LLD + DSA): Designed a Rate Limiter (gave the sliding window solution; for million users, missed Token Bucket) + Monotonic Stack question

Verdict -ve 4th Round (HLD): Designed a CheerCoin system (I didn't understand what went wrong, but I saw this question for the first time. Might have missed something.)

Verdict -ve 5th Round (Bar Raiser): 30 mins LP questions with deep grilling about past projects + LLD round to design max concurrent users logged in at the same time

Verdict +ve Good experience, although I felt I gave my best. Didn’t get the offer this time, but will keep grinding until then!! --- Preparation strategy: DSA: LeetCode

LLD Studied using ChatGPT

HLD HelloInterview Practice mocks: TryExponent --- All the best everyone!!

About This Question

This is a candidate experience report from a amazon interview for a swe role during the oa round reported in 2026.

It covers the following topics: Dynamic Programming, Recursion, Sliding Window, Stack, Two Pointers .

Difficulty rating: Hard