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Walmart Software Engineer 3 Interview Experience

Software Engineer 3

Walmart
June 10, 2025
11 Questions
Selected

Summary

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The Walmart interview process for a Software Engineer position consisted of four rounds, featuring a diverse range of questions. The first round focused on Data Structures and Algorithms, while subsequent rounds covered Low Level Design, technology-specific discussions, and behavioral assessments. The overall difficulty level was medium, with candidates required to demonstrate technical prowess and engage in deep discussions regarding project management and technology choices. Candidates should be prepared for both coding and HR-related inquiries throughout the interview at Walmart.

1

First Round (DSA Interview)

#1

Find All Anagrams in a String

Given a string, find all the anagrams that can be formed using the characters of that string. Return a list of all grouped anagrams sorted in a specific order.
strings
hashing
algorithm
Medium
#2

Find the kth Highest Frequency Character

In a stream of characters, determine which character has the kth highest frequency. If two characters have the same frequency, return the one that appears first in the stream. Example: If the input is 'abracadabra', k = 2, the output should be 'a'.
strings
frequency
algorithm
Medium
Find the kth highest frequency character

Problem link for retrieving the kth highest frequency character from a stream

#3

Trapping Rain Water Problem

Given an array of integers representing the heights of barriers, compute how much water can be trapped after raining. You need to provide an optimized approach that performs better than O(n^2).
arrays
water-trapping
optimization
Medium
2

Second Round (Low Level Design)

#1

Role-Based Access Management System Design

Design a Role-Based Access Management system. Describe the components, how users and roles are managed, and how access to resources is granted based on roles.
system-design
access-control
architecture
Medium
#2

Basic Java Questions

What are Java garbage collection mechanisms? Explain multithreading and its importance in Java applications.
java
garbage-collection
multithreading
Easy
#3

Discuss Current Projects and APIs

Discuss the current projects you are working on and the APIs you are using. Describe how these APIs integrate with other services or components.
apis
project-management
integration
Medium
3

Third Round (HM Round)

#1

Microservices Architecture Discussion

Discuss the microservices architecture you've worked on. Explain your technology choices, especially why you selected MySQL over NoSQL for your project.
microservices
architecture
databases
Medium
#2

Behavioral Questions

Describe your strengths and weaknesses. Provide examples of situations where you thought outside the box and offered simple solutions to complex problems.
behavioral
self-assessment
problem-solving
Easy
4

Fourth Round (HR Round)

#1

Why Walmart?

What are your reasons for wanting to work at Walmart? What do you know about the company that attracts you?
company-knowledge
motivation
Easy
#2

Reasons for Job Change

What are your reasons for looking to change jobs at this point in your career? What are you seeking in your next role?
career-change
motivation
Easy
#3

Salary Expectations

What are your salary expectations for this role? How did you arrive at this figure?
salary-negotiation
expectations
Easy
dsalow-level-designmicroserviceswalmartsoftware-engineerbehavioral-questionsjob-interviewwalmart
r

ritwik chakraborty

Verified User

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