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Interview Process   |   Interview Puzzles / Aptitude
Organization : Walmart eCommerce
Position : Software Engineer

Walmart eCommerce Interview Process

I applied at Walmart eCommerce for the post of Software Engineer through an employee referral and was interviewed at Walmart eCommerce. I faced a telephonic interview and five on-site interviews in the hiring process. The overall interview experience was good.

Round 1 - Telephonic Interview
The telephonic interview or screening was the first step and thus it was very basic. I was asked about the basic things about myself and the projects that I had done. After than there were some technical questions asked to me. The interview lasted for about half an hour and when I was able to answer well, the first on-site interview was scheduled.

Round 2 - First On-Site Interview
The first on-site interview focused more on questions related to myself than the technical things. All sort of questions were asked from me. I was also asked about my projects again but this time, I had to give a detailed explanation as there were cross questions too. So basically, they got to know about the shortcomings and the problems that were faced during the projects. Nothing major was asked in this round.

Round 3 - Second On-Site Interview
This round began with some basic technical questions and terms. A few questions on data structures and queries were asked. The interview lasted for about 45 minutes and many questions were asked.
Q1. Implement cache with proper synchronization.

Round 4 - Third On-Site Interview
After I was able to impress the interviewer in the previous round, I was called for my third on-site interview. This interview enhanced the difficulty level a bit. More complex questions were asked. Even a couple of coding problems were given. Some of the questions or problems given to me in this interview:
Q1. Design file system.
Q2. Parse website and replace phone numbers.
Q3. Working of torrent.

Round 5 - Fourth On-Site Interview
This round was also a technical interview with a senior position technical official. More questions were asked and this time the difficulty level was a bit more than average. The interview lasted for more than an hour. I was not able to give answers to all the questions but I was able to make my impression due to which I was selected for the next round. Some of the questions that were asked:
Q1. Given n clusters of k machines, what is the best way to transfer one file to all of them?
Q2. Design traffic signal.
Q3. Design a card game.
Q4. Given heights of buildings, find the water clogged above them if it rains. The width of all the buildings are same and there is no space between two buildings.

Round 6 - Fifth On-Site Interview
This was the HR round and was pretty relaxing. There were some basic behavior related questions like how will you manage to work under extreme pressure. What will I do if I get into a fight with the manager? After all these sort of questions, a few questions were asked based on my resume.

How to crack (get into) Walmart eCommerce Online Interview

There is not much to mention now that I have already explained everything in detail above. The hiring process at Walmart eCommerce is lengthy but keep your patience with you. The company is really good and it is worth waiting for. Even if you are not selected, you will gain a good experience as all the people are highly professional and very talented.

Regarding the preparation, you literally need to prepare everything as the questions can come up from anywhere. But you can focus more on the coding part, database structures, java based questions, queries etc. Also, do prepare for resume-based questions. Such questions will pop up in the telephonic interview as well as the HR interview.

Other than that, just prepare hard and try to give your best shot at it. All the best for your interviews.

Thanks Anmol for sharing the details of your interview.
Send more details and your personal experiences info@gpuzzles.com
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A claustrophobic person boards a train that is just about to enter a tunnel.

Which place will be the best for him to sit?

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You need to divide 50 marbles(25-red and 25-blue) into two boxes such that the probability of picking red marble is maximized.

Following conditions need to hold true :
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2. All the marbles must be in one of two boxes.

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It takes ten minutes to fry a steak (five minutes for each side). You are frying the steaks in a pan that can accommodate only two steaks at one time. What is the least amount of time by which you can fry all the three steaks you have?

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There stand nine temples in a row in a holy place. All the nine temples have 100 steps climb. A fellow devotee comes to visit the temples. He drops a Re. 1 coin while climbing each of the 100 steps up. Then he offers half of the money he has in his pocket to the god. After that, he again drops Re. 1 coin while climbing down each of the 100 steps of the temple.

If he repeats the same process at each temple, he is left with no money after climbing down the ninth temple. Can you find out the total money he had with him initially?

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If 1 + 9 + 11 = 1, Then what is the value of

12 + 11 + 9 = ?

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Maths Magic Riddle

I can prove why 1 = 2

Step1. Lets say y = x
Step2. Multiply through by x xy = x2
Step3. Subtract y2 from each side xy - y2 = x2 - y2
Step4. Factor each side y(x-y) = (x+y)(x-y)
Step5. Divide both sides by (x-y) y = x+y
Step6. Divide both sides by y y/y = x/y + y/y
Step7. And so... 1 = x/y + 1
Step8. Since x=y, x/y = 1 1 = 1 + 1
Step9. And so... 1 = 2

How is this possible ?

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There are three bags.The first bag has two blue rocks. The second bag has two red rocks. The third bag has a blue and a red rock. All bags are labeled but all labels are wrong.You are allowed to open one bag, pick one rock at random, see its color and put it back into the bag, without seeing the color of the other rock.

How many such operations are necessary to correctly label the bags ?

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You are trapped with a lion in a cage with 1 unit as its radius. Both you and the lion can run effortlessly at the speed of one unit.

1) The lion is quite hungry and all he wants is to catch you and eat you up. Will he be able to do that?
2) If yes, how long do you have till he does that?

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We all know that New Year occurs after a week from Christmas and thus it falls on the same day as of Christmas. But this will not happen in 2050. In 2050, Christmas will appear on Sunday while New Year will appear on Saturday.

How can this be possible ?

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Four people need to cross a dark river at night.

* They have only one torch and the river is too risky to cross without the torch.
* If all people cross simultaneously then torch light wont be sufficient.
* Speed of each person of crossing the river is different.cross time for each person is 1 min, 2 minutes, 7 minutes and 10 minutes.

What is the shortest time needed for all four of them to cross the river ?

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