5 Walmart Senior UI Software Engineer Interview Questions & Answers | Complete Prep Guide 2025

Walmart Senior UI Software Engineer Interview Experiences

1 interview found

Senior UI Software Engineer Interview Questions & Answers

Anonymous

posted on 22 Mar 2024

Interview experience

Good

Difficulty level

Moderate

Process Duration

Less than 2 weeks

Result

Not Selected

I applied via Instahyre and was interviewed in Feb 2024. There was 1 interview round.

Round 1 - Technical

(5 Questions)

Q1. React Coding to implement Stop watch with Start, Stop, Resume, Pause

Ans.

Implement a React stopwatch with start, stop, resume, and pause functionalities.

Use state to track the elapsed time
Create functions for start, stop, resume, and pause actions
Use setInterval for updating the timer every second
Display the timer in the UI

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Q2. Theoretical Questions on React like Code splitting, Virtual DOM, useCallback etc.

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Q3. How does memory leak happen in Javascript

Ans.

Memory leaks in JavaScript happen when unused objects are not properly released from memory.

Memory leaks can occur when variables are not properly dereferenced, preventing garbage collection.
Closures can also lead to memory leaks if they hold references to large objects.
Event listeners can cause memory leaks if not removed properly after use.
Using setInterval without clearing it can lead to memory leaks.
Circular refere

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Q4. Error Handling component in React

Ans.

Error handling in React involves creating a component to display error messages and handling errors gracefully.

Create an ErrorBoundary component to catch errors in child components.
Use try-catch blocks in async functions to handle errors.
Display error messages to the user using state or props.
Use error boundaries to prevent the entire UI from crashing due to a single error.

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Q5. Currying related problem. Implement sum(1)(2)(3)()

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Interview Preparation Tips

Interview preparation tips for other job seekers - Be very thorough with Javascript and React concepts. Nothing complicated

Skills evaluated in this interview

Interview questions from similar companies

Software Engineer Interview Questions & Answers

Accenture

Anonymous

posted on 1 Jun 2022

I appeared for an interview before Jun 2021.

Round 1 - Coding Test

(2 Questions)

Round duration - 180 minutes
Round difficulty - Easy

It was an mcq + coding round. There were aptitude and ouput based question in mcq. And coding questions were easy

Q1.

Find the Duplicate Number Problem Statement

Given an integer array 'ARR' of size 'N' containing numbers from 0 to (N - 2). Each number appears at least once, and there is one number that appears twice. Yo...

Ans.

Find the duplicate number in an array of integers from 0 to (N-2).

Iterate through the array and keep track of the frequency of each number using a hashmap.
Return the number with a frequency greater than 1 as the duplicate number.
Time complexity can be optimized to O(N) using Floyd's Tortoise and Hare algorithm.

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Q2.

Reverse String Operations Problem Statement

You are provided with a string S and an array of integers A of size M. Your task is to perform M operations on the string as specified by the indices in array A...

Ans.

Given a string and an array of indices, reverse substrings based on the indices to obtain the final string.

Iterate through the array of indices and reverse the substrings accordingly
Ensure the range specified by each index is non-empty
Return the final string after all operations are completed

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Round 2 - Video Call

Round duration - 60 Minutes
Round difficulty - Easy

It was technical + hr round. there were 2 people as interviewer. They stated from intro and asked some basic puzzles and hr questions. After that they asked about my projects, technologies and some ds algo and dbms questions.

Interview Preparation Tips

Eligibility criterianaAccenture interview preparation:Topics to prepare for the interview - Data Structures, Pointers, OOPS, System Design, Algorithms, Dynamic ProgrammingTime required to prepare for the interview - 6 MonthsInterview preparation tips for other job seekers

Tip 1 : Practice aptitude
Tip 2 : Focus on practicing coding
Tip 3 : Learn from mistakes

Application resume tips for other job seekers

Tip 1 : Mention some projects that you have done
Tip 2 : Try to have skills that are required for the role

Final outcome of the interviewSelected

Skills evaluated in this interview

Software Developer Interview Questions & Answers

Amazon

Anonymous

posted on 16 Sep 2021

I appeared for an interview before Sep 2020.

Round 1 - Coding Test

(1 Question)

Round duration - 90 minutes
Round difficulty - Easy

This was MCQ+Coding round.

Q1. How can you check if two strings are anagrams of each other?

Ans.

Check if two strings are anagrams by comparing the sorted versions of the strings.

Sort both strings and compare if they are equal.
Use a hashmap to store the frequency of characters in each string and compare the maps.
Ignore spaces and punctuation when comparing the strings.

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Round 2 - Face to Face

Round duration - 90 minutes
Round difficulty - Easy

This was face to face interview round.

Round 3 - Face to Face

Round duration - 90 minutes
Round difficulty - Easy

This was face to face interview round.

Interview Preparation Tips

Professional and academic backgroundI completed Computer Science Engineering from National Institute Of Technology, Silchar, Assam. I applied for the job as SDE - 1 in SiddharthnagarEligibility criteria6 CGPAAmazon interview preparation:Topics to prepare for the interview - Basic Computer Science backgroundTime required to prepare for the interview - 6 monthsInterview preparation tips for other job seekers

Tip 1 : Participate in live contests on websites like Codechef, Codeforces etc as much as possible.
Tip 2 : Practice previous interview questions from LeetCode, GeeksForGeeks.
Tip 3 : Revise Computer Science subjects like DBMS, OOPS thoroughly.

Application resume tips for other job seekers

Add projects and Internships if you have done any and add only those things which you really know.

Final outcome of the interviewSelected

Skills evaluated in this interview

Software Developer Interview Questions & Answers

Amazon

Anonymous

posted on 16 Sep 2021

I appeared for an interview before Sep 2020.

Round 1 - Coding Test

(1 Question)

Round duration - 90 Minutes
Round difficulty - Medium

Interview started at 11:00 am. It was an online round. During the coding round I submitted optimized solution and got full acceptance of the solutions.

Q1.

Detect Cycle in a Directed Graph

You are provided with a directed graph composed of 'N' nodes. You have a matrix called 'EDGES' with dimensions M x 2, which specifies the 'M' edges in the graph. Each edge...

Ans.

Detect cycle in a directed graph using depth-first search (DFS) algorithm.

Use DFS to traverse the graph and detect back edges indicating a cycle.
Maintain a visited array to keep track of visited nodes during traversal.
If a node is visited again during traversal and it is not the parent node, then a cycle exists.
Return true if a cycle is detected, false otherwise.

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Round 2 - Face to Face

(1 Question)

Round duration - 80 Minutes
Round difficulty - Medium

Interview started at 10:00 am. Interview went well, I was able to connect with the interviewer and enjoyed the whole interview

Q1.

Next Smallest Palindrome Problem Statement

Find the next smallest palindrome strictly greater than a given number 'N' represented as a string 'S'.

Explanation:

You are given a number in string format, a...

Ans.

Find the next smallest palindrome greater than a given number represented as a string.

Convert the string to an integer, find the next greater palindrome, and convert it back to a string.
Handle cases where the number is a palindrome or has all digits as '9'.
Consider both odd and even length numbers when finding the next palindrome.

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Round 3 - Face to Face

(1 Question)

Round duration - 80 Minutes
Round difficulty - Medium

Interview started at 11:00 am. Interview went well.

Q1.

Boundary Traversal of a Binary Tree

Given a binary tree of integers, your task is to return the boundary nodes of the tree in Anti-Clockwise direction starting from the root node.

Input:

The first line ...

Ans.

Return the boundary nodes of a binary tree in Anti-Clockwise direction starting from the root node.

Traverse the left boundary nodes in a top-down manner
Traverse the leaf nodes from left to right
Traverse the right boundary nodes in a bottom-up manner
Handle cases where duplicates occur in the boundary nodes
Implement the function without printing as printing is already managed

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Interview Preparation Tips

Eligibility criteriaGood knowledge of Data Structures, Some great projects which are used by the usersAmazon interview preparation:Topics to prepare for the interview - Data Structures, Web development, System Design, Algorithms, Dynamic Programming, Database, OS, Networking, OOPS, DevOpsTime required to prepare for the interview - 8 monthsInterview preparation tips for other job seekers

Tip 1 : For Data Structures number of questions doesn't matter. Try to understand the logic behind them and try to apply them in creating multiple scenario's. Learn them by heart.
Tip 2 : For Web.Development Try to learn full stack development. See which part interests you more, Increase your knowledge horizon, Always try to build a system a system considering It will be served to millions of customers. By doing this 1-2 projects will increase and cover all the major things which one should learn in their career/college.

Application resume tips for other job seekers

Tip 1 : Always try to make it a single page
Tip 2 : Always make resume company specific. eg. Data Structures part more if you are applying for MNC's eg. Amazon, Google, DE Shaw, browserstack.

Final outcome of the interviewSelected

Skills evaluated in this interview

Software Developer Interview Questions & Answers

Accenture

Anonymous

posted on 27 Oct 2018

I applied via Company Website and was interviewed in Oct 2018. There was 0 interview round.

Interview Preparation Tips

General Tips: This interview was a technical one but was majorly a stress test. It lasted for about 1 hour 10 minutes. The interviewer wanted to test both my knowledge and communication skills. Most of the questions asked to me were related to my B.Tech curriculum i.e. computer science related topics. He stressed a lot on the basics related to my project topic. Luckily I was able to answer most of the questions correctly. I tried to answer each question with examples and also used props on the table (like pens, paperweights, pen stands etc.) to explain my theories. It was my first offcampus interview, and I think I did pretty well for a fresher.
You need to stay calm and should apply presence of mind. Please go through the job description thoroughly word-by-word and recheck your resume to ensure that you are a best-fit for the position.
Skills: Communication, Body Language, Problem Solving, Leadership, Presentation Skills
Duration: <1 week

Software Engineer Interview Questions & Answers

Accenture

Anonymous

posted on 7 Jan 2020

Interview Questionnaire

6 Questions

Q1. What is fan trap? How to solve it? Give one example.

Ans.

Fan trap is a situation in which a query involving multiple tables results in a Cartesian product.

Fan trap occurs when a table is connected to multiple tables in a one-to-many relationship.
It can be solved by creating a bridge table or by using aggregate functions.
For example, if a customer table is connected to an orders table and a products table, a fan trap can occur when trying to retrieve information about custome...

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Q2. Two tables are joined. But joined type are not mentioned, then how much records will retrieve using select statement.

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Q3. How to use dynamic break in report?

Ans.

Dynamic break in report allows for automatic page breaks based on data.

Define a break field in the report design
Set the break field to trigger a page break when its value changes
Use dynamic break to automatically adjust page breaks based on data
Example: A report on sales by region can use dynamic break to create a new page for each region

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Q4. Use of foreach function in report.

Ans.

Foreach function is used to iterate through an array of strings in a report.

Foreach function is used to loop through each element in an array of strings.
It can be used to display each element in a report.
Example: foreach(string item in stringArray){ Console.WriteLine(item); }

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Q5. What is Aggregate awareness? When we use it? Syntax of it.

Ans.

Aggregate awareness is a feature in Business Objects that allows reports to be optimized for performance by using aggregate tables.

Aggregate awareness is used when creating reports in Business Objects
It allows the report to use aggregate tables instead of detailed tables for improved performance
Syntax: AGGR_AWARE(, ,
)
Example: AGGR_AWARE(Product, Sum(Sales), Sales_Fact_Table)

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Q6. @prompt function syntax and it's use.

Ans.

The @prompt function syntax is used to display a prompt message to the user and receive input.

The syntax is @prompt('message', 'default value')
The message is the prompt message to be displayed to the user
The default value is optional and will be displayed in the input field
The function returns the value entered by the user

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Senior Software Engineer Interview Questions & Answers

Accenture

Anonymous

posted on 24 Oct 2021

I applied via Referral and was interviewed before Oct 2020. There were 3 interview rounds.

Interview Questionnaire

1 Question

Q1. Mostly on core java n spring

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Interview Preparation Tips

Interview preparation tips for other job seekers - It's very simple and really cool

Software Engineer Interview Questions & Answers

Accenture

Anonymous

posted on 29 Sep 2021

Interview Preparation Tips

Interview preparation tips for other job seekers - they ask question on basics and concepts more, rest interview is easy.

Software Engineer Interview Questions & Answers

Accenture

Anonymous

posted on 2 Oct 2021

I applied via Company Website and was interviewed before Oct 2020. There were 3 interview rounds.

Interview Questionnaire

1 Question

Q1. String manipulation , collections, framework understanding

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Interview Preparation Tips

Interview preparation tips for other job seekers - For QA Automation - Basics of OOPS concept,collections,strings are enough

Senior Software Engineer Interview Questions & Answers

Accenture

Anonymous

posted on 29 Mar 2021

I applied via Naukri.com and was interviewed in Sep 2020. There were 5 interview rounds.

Interview Questionnaire

1 Question

Q1. Most of the questions were on the technical skills and things I worked on added in my resume

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Interview Preparation Tips

Interview preparation tips for other job seekers - Should be ready for cross questions asked on the things we say we have worked on. Should have knowledge of latest updates of the respective technology.

Walmart Interview FAQs

How many rounds are there in Walmart Senior UI Software Engineer interview?

Walmart interview process usually has 1 rounds. The most common rounds in the Walmart interview process are Technical.

How to prepare for Walmart Senior UI Software Engineer 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. The most common topics and skills that interviewers at Walmart expect are Agile, Coding, Data Structures, Debugging and HTML.

What are the top questions asked in Walmart Senior UI Software Engineer interview?

Some of the top questions asked at the Walmart Senior UI Software Engineer interview -

React Coding to implement Stop watch with Start, Stop, Resume, Pa...read more
How does memory leak happen in Javascr...read more
Error Handling component in Re...read more

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Walmart Senior UI Software Engineer Interview Questions and Answers

Walmart Senior UI Software Engineer Interview Experiences

1 interview found

(5 Questions)

Interview Preparation Tips

Skills evaluated in this interview

Interview questions from similar companies

(2 Questions)

Find the Duplicate Number Problem Statement

Reverse String Operations Problem Statement

Interview Preparation Tips

Skills evaluated in this interview

(1 Question)

Interview Preparation Tips

Skills evaluated in this interview

(1 Question)

Detect Cycle in a Directed Graph

(1 Question)

Next Smallest Palindrome Problem Statement

Explanation:

(1 Question)

Boundary Traversal of a Binary Tree

Input:

Interview Preparation Tips

Skills evaluated in this interview

Interview Preparation Tips

Interview Questionnaire

6 Questions

Interview Questionnaire

1 Question

Interview Preparation Tips

Interview Preparation Tips

Interview Questionnaire

1 Question

Interview Preparation Tips

Interview Questionnaire

1 Question

Interview Preparation Tips

Walmart Interview FAQs

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