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Table of contents
Eligibility Criteria
Format Of The Challenge 
How to Prepare For The Challenge?
Frequently Asked Questions
Where will the challenge take place?
Will I receive a reminder notification before the challenge begins?
How do I participate in this challenge?
My code works in my local IDE, however, it throws compilation errors when I run it on the platform interface. Why does this happen?
Last Updated: Mar 27, 2024

Walmart CodeHer Coding Challenge

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Saurav Prateek
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20 Jun, 2024 @ 01:30 PM


Walmart Global Technologies is a pioneer in the world of online shopping who provides the best and first-class experience to its users. The reason why this has been made possible is because of the company’s customer-driven ideologies and the amazing set of developers that makes the implementations of the ideas possible.


Team Walmart consists of an amalgamation of software developers, data scientists, technical architects, and program managers who work together to create solutions in a fast, efficient, and well-thought-of manner. 

Walmart CodeHer Coding Challenge is a recruitment test being organized for the software engineering position openings in Walmart’s Bangalore and Chennai offices which are seeking prospective candidates who have a knack for technical innovation with a mindset of making the e-commerce world a better and more inclusive place for the users around the globe. 

This article offers you a complete insight into the eligibility criteria, test structure, and tips that will help you to ace your exam and get a chance to work with the brightest minds in the country. 

Eligibility Criteria

Candidates giving the test should have 1 to 5 years of experience in developing applications that can be highly scaled and developing platforms preferably in product-based companies or other companies in their research and development departments.

The candidates should have pursued BE/B.Tech or ME/M.Tech equivalent with Computer Science, Electronics, Electrical Telecommunication, Information Technology, and Instrumentation.  

The candidates are required to be well versed with basic computer science fundamentals which include data structures and algorithms and design patterns. The candidates also need to have a hands-on experience with Java, Springboot, and Microservices and should have built products and services using a combination of these technologies.

The candidates should also have experience working with front-end web technologies which can be a set of or any one of the following technologies – ReactJS, AngularJS, Typescript, and CSS. The candidates are also required to have hands-on experience and knowledge of restful services and SOAP web services.

It is also preferred for the candidates to know about Kafka and RabbitMQ messaging systems, Junit, Spock and Jest unit testing frameworks, Sonar code quality platform, Git, Maven, Jenkins, Docker, Kubernetes, Azure DevOps CI/CD development environments and tools, Microsoft Azure cloud platform, and Linux. 

Most importantly, the candidate should be able to adapt to new changes and have good development skills. The candidate should also have strong interpersonal and communication skills.

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Format Of The Challenge 

The candidates fulfilling the eligibility criteria will be sent an invite mail for attempting the test. The test is generally open for three long days and every time a random set of questions is provided to the participants. The participants are free to attempt the test on any day from the given window of three days. 

The test consists of 10 questions out of which 8 are multiple-choice questions and 2 questions are based on data structures and algorithms having medium difficulty levels. There is however a language restriction. The participants are required to code their solutions in Java only.

How to Prepare For The Challenge?

To prepare for the challenge, you need to be well versed with computer fundamentals and data structures, and algorithms specified in the language Java. You can check out Walmart CodeHers coding questions and answers, Walmart coding challenge questions, Walmart codeHers MCQ questions, and answers, Walmart CodeHers previous year questions online to get a look and feel of how the questions are going to be on the day of the challenge. 

To practice more, you can check out Walmart-specific questions at platforms like Coding Ninjas Studio where you can not only practice these questions hands-on but can also read interview experiences of students who participated in the Walmart CodeHer Coding Challenge in previous years. 

Frequently Asked Questions

Where will the challenge take place?

The challenge will take place on the HackerEarth platform.

Will I receive a reminder notification before the challenge begins?

Yes, you will receive a reminder notification before the challenge begins via email.

How do I participate in this challenge?

To participate in this challenge, you first have to meet the eligibility criteria after which you will be able to register on the HackerEarth platform.

My code works in my local IDE, however, it throws compilation errors when I run it on the platform interface. Why does this happen?

The reason why this is possibly happening is that you are not considering the edge cases which are giving you compilation errors such as memory leaks and segmentation faults. They can also arise due to the miscalculation of the size of the variables required for your program.


To summarise what has been said above, Walmart CodeHers Coding Challenge 2021 is an amazing opportunity for engineers to have a chance into working with the best minds in the e-commerce industry. A little push towards data structures and algorithms will land you the job of your dreams.

To know more about computer science fundamentals and data structures and algorithms, you can take up dedicated courses from Coding Ninjas which are taught by industry experts having tonnes of experience in teaching students and making them reach the zenith of glory.

The courses also offer dedicated doubt support which will help you in enhancing your understanding of the subject. The Coding Ninjas Studio platform also offers free courses on interview preparation, data structures and algorithms, operating systems, and system design which will help you in preparing well for your next technical interview. 

Happy Learning!   

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