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Walmart Labs Interview Questions, Process, and Tips
Top Walmart Labs Interview Questions and Answers
- Q1. Write a code for building a heap and explain its time complexity
- Q2. Intersection and Intersection Point in 2 Linked List
- Q3. Why JVM is platform independent
Walmart Labs Interview Experiences
47 interviews found
Himanshu Dasani
Selected
I appeared for an interview before Jul 2023.
(1 Question)
- Q1. Why does zookeeper have odd number of nodes
- Ans.
Zookeeper uses odd number of nodes to ensure a majority quorum for leader election and data consistency.
Odd number of nodes helps in avoiding split-brain scenarios where multiple nodes claim to be the leader
With an odd number of nodes, a majority quorum can be established to elect a leader and maintain data consistency
In case of network partitions, having an odd number of nodes ensures that there is always a majority t
Software Development Engineer Interview Questions asked at other Companies
Anonymous
Selected
I applied via Approached by Company and was interviewed before Jun 2023. There were 3 interview rounds.
(2 Questions)
- Q1. Basic Teradata and DBA questions.
- Q2. Cloud technologies related questions.
(2 Questions)
- Q1. Advanced DBA questions on Teradata.
- Q2. How we document the processes in current project.
(3 Questions)
- Q1. General Personal questions.
- Q2. HR shared different perks and benefits.
- Q3. Salary structure and negotiation.
Interview Preparation Tips
I applied via Campus Placement and was interviewed before Aug 2023. There were 4 interview rounds.
Aptitude test to filter students for next round
Coding test Data structure Algorithm to filter for next round
(1 Question)
- Q1. Thread related question
(1 Question)
- Q1. Simple conversation
Interview Preparation Tips
DS-Algo round,
OS round,
HR round
Top Walmart Labs Software Engineer Interview Questions and Answers
Software Engineer Interview Questions asked at other Companies
Selected
I applied via Referral and was interviewed before Apr 2023. There were 3 interview rounds.
(2 Questions)
- Q1. Recursive CTE related SQL
- Q2. Python program to parse JSON
- Ans.
Python program to parse JSON
Use the json module in Python to parse JSON data
Use the loads() method to load JSON data into a Python dictionary
Access the data in the dictionary using keys
(2 Questions)
- Q1. Advanced SQL on JOINs and Windowing
- Q2. Spark Optimization on JOIN queries
- Ans.
Optimizing JOIN queries in Spark involves partitioning data, using broadcast joins, and optimizing shuffle operations.
Partition data to avoid shuffling unnecessary data across the network
Use broadcast joins for small tables that can fit in memory of each executor
Optimize shuffle operations by tuning shuffle partitions and memory settings
No case study was asked. HM asked about my experience and project details.
Interview Preparation Tips
Skills evaluated in this interview
Data Engineer 3 Interview Questions asked at other Companies
Walmart Labs interview questions for popular designations
Selected
I applied via Campus Placement and was interviewed before Jun 2023. There were 4 interview rounds.
2 questions and 15 mcq
(1 Question)
- Q1. I don't remember
(1 Question)
- Q1. I don't remember
(1 Question)
- Q1. Issues faced in a project , and common hr questions and went a little technical.
Interview Preparation Tips
- Linked list
- arrays
- Dp
- Recursion
- Back tracking
Software Developer Interview Questions asked at other Companies
Get interview-ready with Top Walmart Labs Interview Questions
Selected
I applied via Job Portal and was interviewed before Apr 2023. There were 4 interview rounds.
Coding round on D2C - codehers
(2 Questions)
- Q1. Create stack using queue and vice-versa, some sql queries.
- Q2. OSI model and other CS fundamentals
(1 Question)
- Q1. Send 0s to the back of the array.
- Ans.
Move all 0s to the end of the array while maintaining the order of other elements.
Iterate through the array and keep track of the index to place non-zero elements.
After iterating, fill the remaining positions with 0s.
(1 Question)
- Q1. General HR questions
Interview Preparation Tips
Skills evaluated in this interview
Software Engineer2 Interview Questions asked at other Companies
Selected
I applied via Campus Placement and was interviewed before Apr 2023. There were 4 interview rounds.
1. Simple sliding window problem
2. Hard problem involved dynamic programming
(1 Question)
- Q1. 1. Coding questions 2. Core subject
(1 Question)
- Q1. 1. Coding question medium 2. Core subjects
(1 Question)
- Q1. Behavioural questions
Top Walmart Labs Software Engineer Interview Questions and Answers
Software Engineer Interview Questions asked at other Companies
Vrinda Mittal
Selected
I applied via Approached by Company and was interviewed before Feb 2023. There were 4 interview rounds.
Easy medium level leetcode problems
(1 Question)
- Q1. Reverse a linkedlist, sorting algorithms
- Ans.
Reverse a linked list and discuss sorting algorithms.
To reverse a linked list, you can use a three-pointer approach.
Sorting algorithms include bubble sort, insertion sort, merge sort, quicksort, etc.
Discuss the time complexity and space complexity of each sorting algorithm.
Provide examples of how each sorting algorithm works.
(1 Question)
- Q1. Java concepts, syncroniszed and one lld problem
(1 Question)
- Q1. Resume discussion, behavioural questions
Interview Preparation Tips
Skills evaluated in this interview
Top Walmart Labs Software Engineer Interview Questions and Answers
Software Engineer Interview Questions asked at other Companies
Selected
I applied via Approached by Company and was interviewed before Apr 2023. There were 2 interview rounds.
Basic problem-solving questions Leetcode easy. Focus on optimisation
(2 Questions)
- Q1. System design round ML focused.
- Q2. Survey analysis tool
- Ans.
A survey analysis tool helps in analyzing and visualizing survey data to draw insights.
Use data visualization techniques like bar charts, pie charts, and histograms to represent survey results.
Utilize statistical analysis methods to identify trends and patterns in the data.
Implement machine learning algorithms for predictive analysis based on survey responses.
Allow for filtering and segmentation of survey data based on...
ml engineer Interview Questions asked at other Companies
Selected
I applied via Job Portal and was interviewed before Sep 2023. There was 1 interview round.
2 DSA based questions
Intern Interview Questions asked at other Companies
Walmart Labs Interview FAQs
Some of the top questions asked at the Walmart Labs interview -
The duration of Walmart Labs interview process can vary, but typically it takes about less than 2 weeks to complete.
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Walmart Labs Interviews By Designations
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Interview Questions for Popular Designations
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Walmart Labs Interview Process
based on 35 interviews
Interview experience
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Walmart Labs Reviews and Ratings
based on 97 reviews
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