Walmart Codehers Interview Experience 2022
Women hiring for Walmart through the Dare2Compete website
MCQ Round: 25 questions based on computer fundamentals and data structures and algorithms. Questions were to be answered in the given stipulated time and were not allowed to revisit the question. The score was to be calculated on correctness and speed.
Coding Round: Two programming questions were there and here again the score was calculated based on the number of test cases passed and the time taken to solve.
Online Profile Validation Round: Shortlist was generated from the score of the above tests and this round was mandatory to be considered for interviews. Here updated resume, passport-sized photograph, college details, CGPA, and location preference were to be submitted.
Profile Validation Round(11 April): This was a 5-minute zoom video call with the recruiter and all other interviews were conducted on zoom. Here I was asked about my college name, CGPA, location preference(Bangalore/Chennai) and asked to show the ID card on the camera. Here I was informed I have my interview scheduled in half an hour.
Interview Round 1(11 April): Introduction and asked whether I am aware of the number of rounds ahead, I politely answered No. She explained to me there will be 2 rounds today and then the final decision will be conveyed. She gave me a question on Linked List and asked me to write code on any IDE. I started explaining the naive approach and then moved to the optimized one. I coded it down and solved mistakes by doing a dry run on my own examples. She seemed satisfied and asked me to email the code to her. In the end, I asked her about the culture at Walmart, so she gave a brief overview referring to her own experience which took about 5–7 minutes. Received the email for 2nd round in an hour.
Interview Round 2(11 April): In this round, I was asked to explain too many questions like the difference between C and C++, process and thread, maxheap and minheap, binary tree, and binary search tree, heap and stack(referring to memory allocation), stack and queue(operations and applications in the real world), thread.start() and thread.run(), critical section and semaphores. I was asked about asymptotic analysis and comparison of different time complexities. Explained the divide and conquer technique by explaining merge sort working with an example given by her. A puzzle was asked at the end which was not focused on whether I arrived at the answer or not, it was just to observe how I understood the problem and how I approached it. I found out the pattern in the problem and at the end, she asked if I have any questions and also helped me understand where I was going wrong. I was asked to stay on the call and after 5 minutes, round 3 started.
Interview Round 3(11 April): Started with an introduction and how the interviews were till now. Detailed discussion on projects and tech stacks. Questions related to the technologies were asked. Situation-based questions were asked and also asked about the competitive programming and contests. In the end, a binary search coding question was asked — search in a rotated sorted array. I was too tired in this round because of 2 continuous interviews and I had to speak a lot in round 2…..too thirsty 😢
Final HM Interview Round(13 April): Started with the introduction, then a discussion on my internship project followed by the API calls made in the project. I was asked if I will be given a new tech stack, and how will I manage to complete my task, I answered using the STAR technique referring to my internship. Then the question “Why Walmart?” to which I answered with full determination. Discussion on the relocation and the Walmart offices present in India.
All the interviewers were female and very humble and helpful. And I was amongst the top 30 coders selected for prize money.😊
Offer intent received on the same day(13 April) after 2 hours.