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Walmart Labs Interview Questions, Process, and Tips

Updated 11 Jan 2025

Top Walmart Labs Interview Questions and Answers

View all 35 questions

Walmart Labs Interview Experiences

Popular Designations

47 interviews found

Interview experience
5
Excellent
Difficulty level
Moderate
Process Duration
Less than 2 weeks
Result
Selected Selected

I was interviewed before Jul 2023.

Round 1 - Technical 

(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

  • Answered by AI

Software Development Engineer Interview Questions asked at other Companies

Q1. Given an acyclic graph of a city where each edge represents a road in the city and each vertex represents an crossing. Write an algo to find out the minimum number of vertices at which a policemen will be kept so that all the roads are cove... read more
View answer (2)

Systems and Infrastructure Engineer Interview Questions & Answers

user image Anonymous

posted on 19 Jun 2024

Interview experience
4
Good
Difficulty level
Moderate
Process Duration
4-6 weeks
Result
Selected Selected

I applied via Approached by Company and was interviewed before Jun 2023. There were 3 interview rounds.

Round 1 - Technical 

(2 Questions)

  • Q1. Basic Teradata and DBA questions.
  • Q2. Cloud technologies related questions.
Round 2 - Technical 

(2 Questions)

  • Q1. Advanced DBA questions on Teradata.
  • Q2. How we document the processes in current project.
Round 3 - HR 

(3 Questions)

  • Q1. General Personal questions.
  • Q2. HR shared different perks and benefits.
  • Q3. Salary structure and negotiation.

Interview Preparation Tips

Interview preparation tips for other job seekers - Just focus and believe in yourself. Be prepared and try to be real.
Interview experience
4
Good
Difficulty level
Moderate
Process Duration
-
Result
-

I applied via Campus Placement and was interviewed before Aug 2023. There were 4 interview rounds.

Round 1 - Aptitude Test 

Aptitude test to filter students for next round

Round 2 - Coding Test 

Coding test Data structure Algorithm to filter for next round

Round 3 - One-on-one 

(1 Question)

  • Q1. Thread related question
Round 4 - HR 

(1 Question)

  • Q1. Simple conversation

Interview Preparation Tips

Interview preparation tips for other job seekers - Filter round,
DS-Algo round,
OS round,
HR round

Top Walmart Labs Software Engineer Interview Questions and Answers

Q1. how to find number of paths in tree such that sum of the values in those nodes will be equal to count?(hint:recursion)
View answer (1)

Software Engineer Interview Questions asked at other Companies

Q1. Bridge and torch problem : Four people come to a river in the night. There is a narrow bridge, but it can only hold two people at a time. They have one torch and, because it's night, the torch has to be used when crossing the bridge. Person... read more
View answer (169)
Interview experience
4
Good
Difficulty level
Moderate
Process Duration
2-4 weeks
Result
Selected Selected

I applied via Referral and was interviewed before Apr 2023. There were 3 interview rounds.

Round 1 - Technical 

(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

  • Answered by AI
Round 2 - Technical 

(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

  • Answered by AI
Round 3 - Case Study 

No case study was asked. HM asked about my experience and project details.

Interview Preparation Tips

Interview preparation tips for other job seekers - Focus on DSA (Easy to medium) and advanced SQL and Spark optimization techniques.

Skills evaluated in this interview

Data Engineer 3 Interview Questions asked at other Companies

Q1. Spark optimization techniques
View answer (1)

Walmart Labs interview questions for popular designations

 Software Engineer

 (12)

 Software Engineer III

 (5)

 Software Developer

 (4)

 Product Manager

 (2)

 Associate Product Manager

 (1)

 Data Engineer

 (1)

 Data Engineer 3

 (1)

 Full Stack Developer

 (1)

Interview experience
5
Excellent
Difficulty level
Moderate
Process Duration
Less than 2 weeks
Result
Selected Selected

I applied via campus placement at Madras Institute of Technology, Chennai and was interviewed before Jun 2023. There were 4 interview rounds.

Round 1 - Coding Test 

2 questions and 15 mcq

Round 2 - Technical 

(1 Question)

  • Q1. I don't remember
Round 3 - Technical 

(1 Question)

  • Q1. I don't remember
Round 4 - HR 

(1 Question)

  • Q1. Issues faced in a project , and common hr questions and went a little technical.

Interview Preparation Tips

Topics to prepare for Walmart Labs Software Developer interview:
  • Linked list
  • arrays
  • Dp
  • Recursion
  • Back tracking

Software Developer Interview Questions asked at other Companies

Q1. Maximum Subarray SumGiven an array of numbers, find the maximum sum of any contiguous subarray of the array. For example, given the array [34, -50, 42, 14, -5, 86], the maximum sum would be 137, since we would take elements 42, 14, -5, and ... read more
View answer (39)

Get interview-ready with Top Walmart Labs Interview Questions

Interview experience
5
Excellent
Difficulty level
Moderate
Process Duration
Less than 2 weeks
Result
Selected Selected

I applied via Job Portal and was interviewed before Apr 2023. There were 4 interview rounds.

Round 1 - Coding Test 

Coding round on D2C - codehers

Round 2 - Technical 

(2 Questions)

  • Q1. Create stack using queue and vice-versa, some sql queries.
  • Q2. OSI model and other CS fundamentals
Round 3 - Technical 

(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.

  • Answered by AI
Round 4 - HR 

(1 Question)

  • Q1. General HR questions

Interview Preparation Tips

Interview preparation tips for other job seekers - Practice leetcode easy-medium

Skills evaluated in this interview

Software Engineer2 Interview Questions asked at other Companies

Q1. - Given a water -tight orientable 2-manifold, how to find if a point is inside or outside its volume? - Given a bunch of points with their coordinates, how to merge closeby points together? - How to determine if the normals of the two trian... read more
View answer (1)
Interview experience
4
Good
Difficulty level
Moderate
Process Duration
-
Result
Selected Selected

I applied via campus placement at Vellore Institute of Technology (VIT) and was interviewed before Apr 2023. There were 4 interview rounds.

Round 1 - Coding Test 

1. Simple sliding window problem
2. Hard problem involved dynamic programming

Round 2 - Technical 

(1 Question)

  • Q1. 1. Coding questions 2. Core subject
Round 3 - Technical 

(1 Question)

  • Q1. 1. Coding question medium 2. Core subjects
Round 4 - HR 

(1 Question)

  • Q1. Behavioural questions

Top Walmart Labs Software Engineer Interview Questions and Answers

Q1. how to find number of paths in tree such that sum of the values in those nodes will be equal to count?(hint:recursion)
View answer (1)

Software Engineer Interview Questions asked at other Companies

Q1. Bridge and torch problem : Four people come to a river in the night. There is a narrow bridge, but it can only hold two people at a time. They have one torch and, because it's night, the torch has to be used when crossing the bridge. Person... read more
View answer (169)

Software Engineer Interview Questions & Answers

user image Vrinda Mittal

posted on 11 Feb 2024

Interview experience
4
Good
Difficulty level
Moderate
Process Duration
2-4 weeks
Result
Selected Selected

I applied via Approached by Company and was interviewed before Feb 2023. There were 4 interview rounds.

Round 1 - Coding Test 

Easy medium level leetcode problems

Round 2 - Technical 

(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.

  • Answered by AI
Round 3 - Technical 

(1 Question)

  • Q1. Java concepts, syncroniszed and one lld problem
Round 4 - Behavioral 

(1 Question)

  • Q1. Resume discussion, behavioural questions

Interview Preparation Tips

Interview preparation tips for other job seekers - Practice easy medium level leetcode problems, strong java foundation

Skills evaluated in this interview

Top Walmart Labs Software Engineer Interview Questions and Answers

Q1. how to find number of paths in tree such that sum of the values in those nodes will be equal to count?(hint:recursion)
View answer (1)

Software Engineer Interview Questions asked at other Companies

Q1. Bridge and torch problem : Four people come to a river in the night. There is a narrow bridge, but it can only hold two people at a time. They have one torch and, because it's night, the torch has to be used when crossing the bridge. Person... read more
View answer (169)

ml engineer Interview Questions & Answers

user image Anonymous

posted on 11 Apr 2024

Interview experience
4
Good
Difficulty level
Easy
Process Duration
-
Result
Selected Selected

I applied via Approached by Company and was interviewed before Apr 2023. There were 2 interview rounds.

Round 1 - Coding Test 

Basic problem-solving questions Leetcode easy. Focus on optimisation

Round 2 - Technical 

(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...

  • Answered by AI

ml engineer Interview Questions asked at other Companies

Q1. How to evaluate regression models? explain r squared and adjusted r squared and difference between them
View answer (1)

Intern Interview Questions & Answers

user image Anonymous

posted on 16 Sep 2024

Interview experience
5
Excellent
Difficulty level
Hard
Process Duration
2-4 weeks
Result
Selected Selected

I applied via Job Portal and was interviewed before Sep 2023. There was 1 interview round.

Round 1 - Coding Test 

2 DSA based questions

Intern Interview Questions asked at other Companies

Q1. Case. There is a housing society “The wasteful society”, you collect all the household garbage and sell it to 5 different businesses. Determine what price you will pay to the society members in Rs/kg, given you want to make a profit of 20% ... read more
View answer (8)

Walmart Labs Interview FAQs

How many rounds are there in Walmart Labs interview?
Walmart Labs interview process usually has 2-3 rounds. The most common rounds in the Walmart Labs interview process are Technical, Coding Test and One-on-one Round.
How to prepare for Walmart Labs interview?
Go through your CV in detail and study all the technologies mentioned in your CV. Prepare at least two technologies or languages in depth if you are appearing for a technical interview at Walmart Labs. The most common topics and skills that interviewers at Walmart Labs expect are Networking, Information Technology, Monitoring, SEZ and Consulting.
What are the top questions asked in Walmart Labs interview?

Some of the top questions asked at the Walmart Labs interview -

  1. how to find number of paths in tree such that sum of the values in those nodes ...read more
  2. There is 3*3 RUBIX cube, Can you find data structure for solving rubix c...read more
  3. If Redo and Undo operations have to perform, which datastructure can we use?(st...read more
How long is the Walmart Labs interview process?

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 Interview Process

based on 35 interviews

Interview experience

4.2
  
Good
View more

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Walmart Labs Reviews and Ratings

based on 97 reviews

3.8/5

Rating in categories

3.5

Skill development

3.6

Work-life balance

3.9

Salary

3.8

Job security

3.5

Company culture

3.0

Promotions

3.4

Work satisfaction

Explore 97 Reviews and Ratings
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