Walmart Global Tech Data Engineer Interview Questions
& Process
Real candidates share what happened, how many rounds they had,
and how the experience turned out.
Based on 20 interview experiences · FREE TO READ
Candidate interview experiences
First-hand accounts from people who interviewed at Walmart Global Tech.
Walmart Global Tech
Data Engineer
Mid Average Positive experience Accept offer 1 round
Interview process
Technical screen
Interview formats
Technical Coding
The interview involved technical questions about data transformations using Scala Spark and SQL, along with conceptual questions covering Big Data technologies like Hive, Spark, and Kafka. There were also questions about Airflow and optimizing Spark jobs.
Confirmed questions6 questions
- Can you describe data transformations using Scala Spark and SQL?
- What are some conceptual questions about Big Data?
- What are some conceptual questions about Hive, Spark, and Kafka?
Walmart Global Tech
Data Engineer Intern
Intern Easy Positive experience Accept offer 2 rounds
Interview process
Take home Technical screen
Interview formats
Technical Coding
It was a 2-round interview process. First, there was a take-home assessment with an advanced SQL question on BigQuery, which also involved visualizing it on BQ. It was pretty straightforward and I had 24 hours to complete it. Second, I had a 1-hour hiring manager round with a Director from Walmart. They reviewed my resume and asked in-depth questions about my previous experience, as well as about Spark and how parallelism works. This interview actually finished in 25 minutes.
Confirmed questions1 question
- Tell me about Spark and how parallelism works.
Walmart Global Tech
Data Engineer
Entry Average Negative experience No offer 1 round
Interview process
Technical screen
Interview formats
Coding
I interviewed for Walmart Bangalore in July. The first round was based on DS/Algo questions. I was given 2 questions to solve but there was enough time to solve only one since the interviewer was late. I described the solution for the second one. The interviewer seemed to be in a hurry to wrap up and didn't seem interested. Even though I answered the questions and gave the optimal solution, I got a NO from Walmart after following up. No explanation was given for what went wrong. Interviewers seem to have a specific answer in mind for a question and if you say anything different, they lose interest. It was a negative experience overall. Don't get your hopes up after performing well. It feels like they decide who to choose randomly.
Confirmed questions1 question
- Graph problems involving BFS, DFS, and connected components.
Walmart Global Tech Data Engineer Interview Questions
Quoted word for word from Walmart Global Tech interview reports.
“How would you ingest a JSON file using Python scripting?”
Read reports →“What are the differences between relational and non-relational databases?”
Read reports →“Can you write the syntax for reading data with Spark?”
Read reports →“Comparing Spark, Features, Decorator program, and RDD, which programming language is the fastest?”
Read reports →“Can you explain the difference between a data lake and a data warehouse?”
Read report →“Could you write a SQL query to identify students with the highest CGPA, broken down by year and gender?”
Read report →“Can you explain windowing functions?”
Read report →“How would you optimize a SQL query?”
Read report →“Tell me about Kafka.”
Read report →Formats, difficulty and experience
Across all 20 Walmart Global Tech interview reports.