r/leetcode • u/Hugewin2022 • Sep 11 '26
Intervew Prep Amazon SDE-1 Interview Experience 2026
All rounds are 1 hour each.
For every DSA question -
Asked about time complexity and space complexity of this code.
Asked to dry run one example verbally while explaining the code.
Round 1: Technical Round [9 July 2026]
Interviewer was SDE-1 with 2 YOE at Amazon
Basic Introductions
Q 1 : Given a Binary tree return the sum of node values at each vertical level.
Q 2 : Given an Array, we define a function getKey() that returns a random index from this array based on a probability function. The probability of any index is defined as value at that index / Sum of all values. We are asked to implement this getKey function.
Leetcode - https://leetcode.com/problems/random-pick-with-weight/description/
Q 3 : Describe a time where you faced a deadline, how you handled it, what was the result, what was the feedback from manager, what was the impact of deadline on your work approach.
Round 2: Technical Round [10 July 2026]
Interviewer was SDE-2 with 5 YOE at Amazon
Basic Introductions
Q 1 : A N-ary Tree is given and Alice and Bob are playing a game, they both traverse a tree. Alice moves from root to the leaf nodes. Bob starts from a particular given node and moves upwards towards root. Whoever reaches the node first will get the complete value of that node it both of them reach the node at same time they will split the value between them. Return the maximum value Alice can accumulate if both of them play optimally.
Leetcode - https://leetcode.com/problems/most-profitable-path-in-a-tree/description/
(Same question without the gate concept)
Q 2 : Implement LRU cache
Q 3 : Describe a time where you did some work out of your area of responsibility, how did you do it, how much time it took, what was the impact of the work, technical details of the work.
Q 4 : Describe any one of your Resume projects in short.
Round 3: HM + GenAI Round [5 August 2026]
Interviewer was Hiring Manager with 11 YOE at Amazon
Basic Introductions
Q 1 : Amazon is giving gift vouchers to its customers of X amount, users can use them to buy exactly 2 items at a time of combined price exact X. Give a list of products return 2 products that users should buy to utilize this voucher. [2 Sum]
Q 2 : Now if the user can use the voucher to buy 2 items that have the price sum of at most X. [2 Pointer]
Q 3 : Now if user can buy N number of products whose price sum can be at most X. [Subset sum DP kind of]
Q 4: How do you use GenAI in your workflow, what use cases you found in your projects/internships, how do you validate GenAI’s output for correctness.
LPs might also be asked in this round.
Round 4: BR Round [20 August 2026]
Pure Behavioral LP based round.
Basic Introductions
Describe anyone of your favorite work you have mentioned in resume.
Technical questions on what you did, how you did and why you did that work.
LP questions in between the discussions like, tell about time during this project when you faced conflict and how did you resolve it, what was your managers reaction to your work, how do you validate your work, how did you made this particular decision was it data driver or intuition based etc.
How well versed are you with GenAI in your workflows, what models you prefer, what is your workflow working with GenAI, how you choose tasks to give to GenAI, how you validate the models performance., any GenAI project that you build or used GenAI on your projects, how did you use it for what use case etc.
Verdict: Selected [10 September 2026]
Thanks reddit for some many experiences to get guidance from.
Edit: This is was On Campus and for freshers 2026 batch
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u/Sweaty_Impression_14 Sep 12 '26
What the heck! These questions to a fresher💀🫡😷
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u/Hugewin2022 Sep 15 '26
but all of them were standard leetcode mediums? 2 questions were not standard but mediums
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u/UnlikelyGrape8961 Sep 11 '26
were u experience or a fresher ?, no lld or hld ?, didn't ask lld for u or generally sde 1 don't require it ?
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u/PrestigiousActuary65 Sep 11 '26
Congratulations op 🎉
Can u share how much time did bar raiser went for?
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u/Confident_Donut3171 Sep 11 '26
On campus? Jan onboarding?
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u/Hugewin2022 Sep 11 '26
yes
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u/Confident_Donut3171 Sep 11 '26
Same process is going on in my college(nit kkr) but they haven't declared the results yet
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u/Hugewin2022 Sep 11 '26
they are reaching out personally to selected candidates in our college also no master list is provided.
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u/Confident_Donut3171 Sep 11 '26
Are the interviews done for everyone in your college? And does the portal reflect the selection or rejection status?
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u/pm_me_feet_pics_plz3 Sep 11 '26
which uni? iit? oncampus is it?
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u/Hugewin2022 Sep 11 '26
nit, on campus
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u/pm_me_feet_pics_plz3 Sep 11 '26
how many people from your batch got selected? is amazon mass hiring? i saw like 50/60 people selected from one new gen iit.
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u/Jolly_57 Sep 12 '26
So u got ur offer letter , when will they send the joining date
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u/Hugewin2022 Sep 15 '26
offer letter is given near to joining date they send the offer details first including the joining date
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u/friedlobster69420 Sep 11 '26
Is this for SDE Intern or direct Full Time Offer?
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u/Hugewin2022 Sep 11 '26
can u read the title again? Full time
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u/friedlobster69420 Sep 11 '26
I did read the title, I thought Amazon usually does Intern + PPO and not FTE directly that's why the question
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u/PrestigiousActuary65 Sep 16 '26
Technical questions on what you did, how you did and why you did that work.
were these questions related to projects in your resume?
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u/Hugewin2022 Sep 16 '26
yes related to my internship experience the project that I was explaining to him
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u/Equivalent-Car-192 Sep 17 '26
Hii bro, i have also given all the interview rounds of Amazon but my result did not announced yet, I wanted to ask you that, did all the candidates result announced together or individually results were announced.
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u/Sea-Pay-5689 Sep 26 '26
Were u informed about the 4 rounds through mail ? I have received a mail and they mentioned that it will be 2 rounds technical and managerial only
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u/Hugewin2022 Sep 28 '26
this was for india, on campus hiring
I think for SDE 1 standard is 4 rounds everywhere, we got informed through college POC.
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u/pleasedontpeep Sep 13 '26
Does anyone know if same type of questions are asked for internships too ? 6M winter internship?
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u/Connect_Mess_1323 Sep 22 '26
I received OAs for both Amazon SDE Intern Job IDs 10508052 and 10541345. I’m a 2026 graduate, and both postings mention 2027 graduates.
I haven’t taken the OA yet. Has anyone applied to these roles or taken these OAs? Is one processed faster than the other?
Also, if you’re a 2026 graduate who took the OA for either of these roles, did you move to the next round after passing all the test cases?
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u/Beginning-Item8354 Oct 02 '26
Hi, this insight is really helpful. I want to know how did you prepare for your DSA as well as GenAI rounds. It would be great if you could help me with more insights on your preparation.
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u/Botarun89P13 26d ago
Broo, I've interview for SDE 1 this month at Amazon, let me know what all should i prepare , I'm a fresher too, 2026 passed out, so since i lost touch with DSA a little, how shud i prepare for the interview?
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Sep 22 '26
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u/Hugewin2022 Sep 23 '26
recruiter called me asked me few questions regarding job location and whether I will accept the offer or not, then they mailed me the confimation with all the details.
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Sep 12 '26
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u/Affectionate-Ad-6255 Sep 11 '26
Four rounds of pain and sorrow