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All interview experiences of Amazon can be found using the tag "amazon_interview_experiences" in the search bar.

Here is the link : https://www.desiqna.in/tag/amazon_interview_experiences

in Interview-Experiences by Expert (11,660 points) | 452 views

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Round 1: 20 min LP, 40 min coding (DS)
- LC Medium (priority_queue + custom comparator). Solved perfectly.
- LC Medium (hashMap + set + custom comparator). Solved perfectly.

 

Round 2: 20 min LP, 40 min coding (Problem-solving)
- LC Hard (dynamic disjoint set with path compression + graph traversal). Solved perfectly.
- LC Medium (two-pointers or hashMap). Famous array problem. Immediately gave O(N^3) solution (NOT brute force), but I could not come up with a follow-up O(N^2) solution as we had only a few mins left.

 

Round 3: 30 min LP, 30 min coding (LLD)
- Medium (polymorphism + inheritance + pure virtual function). Solved perfectly.

 

Round 4: 60 min LP (bar-raiser)
- All LPs, and grilling follow ups on both technical & behavioral aspects of each answer. Felt like it went quite well!

 

Round 5: 40 min LP, 30 min system design (HLD)
- Medium from Grkkking the system design course. Solved perfectly.

 

Offer: Received offer in 48 hours. (May 24, 2022)

 

My Preparation (3 months):
- Textbook: Algorithms by Dasgupta. (1 month)
- Leetcode: 158 easy + 196 medium + 24 hard = 378 problems. (3 months)
- Completed amazon interview card + all explore cards in leetcode. Very helpful!
- Attended 10 weekly LC contests to emulate the time-sensitive interview experience. (2 months)
- Prepared 10-12 rock solid stories & tagged them all relevant amazon LPs. ( 2 weeks)
- Grkkking course for the system design. (1 month)

 

My Observations:
- Identifying patterns between questions are far more important than trying to solve a lot of questions.
- Leverage LC "list" feature to store and revisit the question/topic patterns or your favorite/tricky qns.
- Try LC explore card; greatly helpful in picking up the patterns.
- Consistently take part in LC weekly contests after you're somewhat confident with all DS topics.
- Solve same questions in all possible ways (recursion/iteration, bfs/dfs/disjointset, etc).
- After solving a question, review and implement any of top few most-voted solutions.
- Think out loud while coding in the interviews; whatever it is, please do not stop talking.
- LPs are super important, especially for amazon. Do mock interviews if you're not natural speaker.
- Preparing 10-15 solid LP stories are far more realistic than practicing on 50+ LP sample qns.
- Prepare a short/cheat note on those LP stories & glance at them during the interview if you get overwhelmed/blanked. Glancing at them will help you improvise!
- Do not repeat same LP story more than twice. Strike out used stories from the cheat sheet.
- Bar raiser can easily spot if you fake stories during the follow ups, therefore, mostly stick to the truths to articulate fluently.
- Grkkking course is enough in most cases for system design, which is essential if you want to clear SDE 2, otherwise they could downgrade you to SDE 1.

by Expert (11,660 points)
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Hey can you share the answers of leaderships questions, which you prepared.Can you share those stories?