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Walmart Software Development Engineer 1 Interview Experience

Software Development Engineer 1

Walmart
June 10, 2025
13 Questions
Selected

Summary

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The Walmart interview experience consists of five rounds covering a variety of topics and questions. The process starts with a set of multiple choice questions, followed by coding challenges that test dynamic programming and optimization skills. Technical interviews dive deep into topics including data structures, SQL, database optimization, and advanced algorithms like sorting techniques. The overall difficulty level appears to be medium to high, reflecting a comprehensive assessment of a candidate's technical acumen.

1

MCQ Challenge

#1

Multiple Choice Questions on Core Topics

Answer a set of 25 multiple choice questions covering topics such as C, Data Structures, Algorithms, Machine Learning, Java, DBMS, Object-Oriented Programming, and core Computer Science fundamentals.
Data Structures
Algorithms
Java
Dbms
C
Machine Learning
Oop
Easy
2

Coding Challenge

#1

Dynamic Programming and Optimization Problems

Solve optimization problems that focus on dynamic programming and mathematical techniques.
Dynamic Programming
Algorithms
Medium
#2

Combinatorics and Bit Manipulation Problems

Address problems that involve combinatorics and bit manipulation, potentially utilizing dynamic programming techniques.
Combinatorics
Bit Manipulation
Medium
3

Technical Interview

#1

Longest Subsegment of 1s Problem

Modify a sequence to maximize the longest subsegment of 1s by changing up to k 0s. Solve it using the two-pointer technique.
Optimization
Twopointer Technique
Medium
#2

Counting Nodes in a Tree

Count the total number of nodes in a binary tree. Use inorder traversal as your approach.
Tree Traversal
Binary Trees
Easy
#3

CI/CD Pipeline Discussion

Discuss the CI/CD pipeline, detailing the processes involved from raising a pull request to merging it.
Cicd
Devops
Medium
#4

Deadlocks and CPU Scheduling Discussion

Explain the concepts of deadlocks in multi-threaded environments and discuss CPU scheduling practices.
Cpu Scheduling
Threads
Medium
#5

Database Structures Discussion

Discuss the differences between maps and sets (ordered/unordered) and how indexing works in databases.
Database Structures
Indexing
Medium
#6

SQL Query Writing and Discussion

Write an SQL query related to the interview context and discuss table partitioning strategies.
Databases
Sql
Medium
#7

Discussing Database Optimization Strategies

Explain strategies for database optimization, including indexing, sharding, and the effects of over-indexing on performance.
Database Optimization
Indexing
Medium
#8

Sorting Algorithms and Complexity Discussion

Discuss different sorting algorithms such as merge sort, quick sort, radix sort, and analyze their time complexities.
Sorting Algorithms
Time Complexity
Medium
4

HM Round Interview

#1

Discussing Abstract Syntax Tree Generation

Explain the concept of parsing, method overriding, and generation of an Abstract Syntax Tree (AST).
Parser
Ast
Medium
#2

Runtime Polymorphism in Custom Widgets

Discuss how custom widgets extend library classes, requiring function overrides, and the concept of runtime polymorphism as used in your project.
Oop
Polymorphism
Widgets
Medium
McaCoding ChallengeDynamic ProgrammingCombinatoricsDatabase OptimizationCicdJob InterviewCareer GrowthWalmart
r

ritwik chakraborty

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