AmbitionBox
Interview Questions
- Reviews
- Salaries
- Interview Questions
- About Company
- Benefits
- Jobs
- Office Photos
- Community
Add office photos
Filter interviews by
Walmart Senior Data Engineer Interview Questions and Answers
Walmart Senior Data Engineer Interview Experiences
4 interviews found
Anonymous
I applied via Referral and was interviewed in Mar 2024. There were 2 interview rounds.
(2 Questions)
- Q1. SQL self join related question
- Q2. Working of spark in detail
- Ans.
Spark is a distributed computing framework that processes big data in memory and is known for its speed and ease of use.
Spark is an open-source, distributed computing system that provides an interface for programming entire clusters with implicit data parallelism and fault tolerance.
It can run programs up to 100x faster than Hadoop MapReduce in memory, or 10x faster on disk.
Spark provides high-level APIs in Java, Scala...
(2 Questions)
- Q1. DAG implementation in detail
- Ans.
DAG implementation involves defining tasks and their dependencies in a directed acyclic graph.
DAG is a graph where nodes represent tasks and edges represent dependencies between tasks.
Tasks can only be executed once all their dependencies have been completed.
Common tools for DAG implementation include Apache Airflow and Luigi.
Example: Task A must be completed before Task B can start, forming a dependency between them.
- Q2. Explain salting in detail
- Ans.
Salting is a technique used in cryptography to add random data to passwords before hashing to prevent rainbow table attacks.
Salting involves adding a random string of characters to a password before hashing it
The salt value is unique for each password and is stored alongside the hashed password
Salting prevents attackers from easily cracking passwords using precomputed rainbow tables
Example: If a password is 'password12...
Skills evaluated in this interview
I applied via Job Portal and was interviewed in Sep 2024. There was 1 interview round.
Code question on tree dp and metrics dp
Kunal Trivedi
I applied via Referral and was interviewed in May 2022. There were 3 interview rounds.
Data structures and algorithms
(1 Question)
- Q1. Low level design and system design
(1 Question)
- Q1. About project and deal with particular problem
Interview Preparation Tips
- Core basics
I applied via Naukri.com and was interviewed before Feb 2021. There were 4 interview rounds.
(3 Questions)
- Q1. Questions on algorithm, coding hands on
- Q2. Core technical questions, scenario based
- Q3. Conceptual questions
(3 Questions)
- Q1. Coding hands on check
- Q2. Scenario based technical questions
- Q3. Architecture based questions
(3 Questions)
- Q1. Project related questions
- Q2. Case studies based questions
- Q3. Core technical questions based on resume
(6 Questions)
- Q1. What are your salary expectations?
- Q2. What is your family background?
- Q3. Why are you looking for a change?
- Q4. Where do you see yourself in 5 years?
- Q5. What are your strengths and weaknesses?
- Q6. Tell me about yourself.
Interview Preparation Tips
What people are saying about Walmart
Interview questions from similar companies
Abhishek Singh
I applied via Other and was interviewed before Nov 2020. There was 1 interview round.
Interview Questionnaire
1 Question
- Q1. Programming question on Java
Interview Preparation Tips
What are the roles & responsibilities of a Senior Data Engineer at Walmart?
Read full roles & responsibilities 
I applied via Recruitment Consultant and was interviewed in Oct 2021. There were 3 interview rounds.
Interview Questionnaire
2 Questions
- Q1. Java8, ds and algo
- Q2. Java springboot Microservices
Interview Preparation Tips
Walmart HR Interview Questions
I applied via Naukri.com and was interviewed in Dec 2022. There were 3 interview rounds.
(2 Questions)
- Q1. Basic fundamentals of React, JS, HTML and CSS
- Q2. Virtual DOM closure Hoisting spread and rest
(2 Questions)
- Q1. Sprint groom, Maximum story points in sprint, what is the role of scrum master, refresh token, Synthetic events, webpack, reduction, redux saga vs thunk, what pattern thunk follows, hooks
- Ans.
Answering questions related to sprint grooming, Scrum Master role, refresh tokens, Synthetic events, webpack, redux saga vs thunk, and hooks for Senior Software Engineer position.
Sprint grooming involves prioritizing and estimating user stories for the upcoming sprint.
Scrum Master facilitates the Scrum process and ensures the team follows the Agile principles.
Refresh tokens are used to obtain new access tokens after th...
- Q2. Swagger vs postman
Interview Preparation Tips
Skills evaluated in this interview
I applied via Recruitment Consulltant and was interviewed before Oct 2021. There were 4 interview rounds.
(2 Questions)
- Q1. What is the difference between virtual and real DOM?
- Q2. What is the difference between var, let and const?
(2 Questions)
- Q1. Optimization techniques in React.
- Ans.
Optimization techniques in React include code splitting, lazy loading, and memoization.
Code splitting: breaking down the code into smaller chunks to reduce load time.
Lazy loading: loading components only when they are needed, reducing initial load time.
Memoization: caching the results of expensive function calls to improve performance.
Using shouldComponentUpdate to prevent unnecessary re-renders.
Using React.PureCompone...
- Q2. All about flexbox modal in CSS.
(1 Question)
- Q1. Agile methodology and your previous projects
- Ans.
I have experience working with Agile methodology in my previous projects.
I have worked in Scrum and Kanban frameworks.
I have experience in conducting daily stand-up meetings, sprint planning, and retrospectives.
I have worked in cross-functional teams and have experience in collaborating with product owners and stakeholders.
I have used tools like Jira and Trello to manage tasks and track progress.
In one of my previous p...
Interview Preparation Tips
- React.Js
- Javascript
- CSS
Skills evaluated in this interview
I applied via LinkedIn and was interviewed in Nov 2021. There were 3 interview rounds.
Interview Questionnaire
1 Question
- Q1. Your counter offer.
Interview Preparation Tips
2.Microservices must be there in your resume .Even if you are top notch in coding you will not be selected if you have not worked on micro services.
3.Bad experience when it comes to the compensation they pay very very less not even try to match the compensation just simply reject if you have a nice counter offer.
4.Advice : When the candidate is good be flexible in your budget .A good candidate will definitely go ahead and do great work for the team.Or at least try to match the counter offer.
5.Process is really really slow and you might end up losing a potential candidate .
6.Lowes Hires a person who has less salary expectations rather than the person who does the best they are OK with mediocrity.
7.Please don't think this is a product based and join .Lowes has people with service based organization mindset.
I applied via Company Website and was interviewed in Mar 2021. There were 4 interview rounds.
Interview Questionnaire
6 Questions
- Q1. Internal working of hash map
- Ans.
Hash map is a data structure that stores key-value pairs and uses a hash function to map keys to indices in an array.
Hash function is used to convert the key into an index in the array
Collisions occur when two keys map to the same index, which can be resolved using separate chaining or open addressing
Load factor is the ratio of number of elements to the size of the array, and affects the performance of hash map
Operatio...
- Q2. Core Java Concepts
- Q3. SQL queries to get 2nd highest salary
- Q4. Authentication and Authorisation
- Q5. Data structures and algorithms questions
- Q6. Questions on design side
Interview Preparation Tips
Skills evaluated in this interview
Walmart Interview FAQs
Tell us how to improve this page.
Walmart Interviews By Designations
- Walmart Software Engineer III Interview Questions
- Walmart Senior Software Engineer Interview Questions
- Walmart Software Engineer Interview Questions
- Walmart Software Developer Interview Questions
- Walmart Data Engineer Interview Questions
- Walmart Data Scientist Interview Questions
- Walmart Associate Interview Questions
- Walmart Senior Engineering Manager Interview Questions
- Show more
Interview Questions for Popular Designations
- Software Engineer Interview Questions
- Senior Software Engineer Interview Questions
- Senior Engineer Interview Questions
- System Engineer Interview Questions
- Senior Associate Interview Questions
- Data Engineer Interview Questions
- Azure Data Engineer Interview Questions
- Big Data Engineer Interview Questions
- Show more
Overall Interview Experience Rating
based on 3 interview experiences
Difficulty level
Duration
Interview Questions from Similar Companies
Walmart Senior Data Engineer Reviews and Ratings
based on 20 reviews
Rating in categories
|
Software Engineer III
2.1k
salaries
|  ₹23 L/yr - ₹40.6 L/yr |
|
Senior Software Engineer
1.8k
salaries
| ₹34.1 L/yr - ₹60 L/yr |
|
Software Engineer
964
salaries
| ₹20.5 L/yr - ₹36 L/yr |
|
Software Developer
495
salaries
| ₹18.5 L/yr - ₹37.6 L/yr |
|
Software Development Engineer 3
409
salaries
| ₹25 L/yr - ₹40 L/yr |
Amazon
Reliance Retail
DMart
Reliance Digital
- Home >
- Interviews >
- Walmart Interview Questions
