Coupang Data Scientist Interview Questions
& Process
Real candidates share what happened, how many rounds they had,
and how the experience turned out.
Based on 8 interview experiences · FREE TO READ
Candidate interview experiences
First-hand accounts from people who interviewed at Coupang.
Coupang
Data Scientist
Director Average Negative experience No offer 3 rounds
Interview process
Recruiter call Phone screen Technical screen
Interview formats
Behavioral Technical
Got contacted by HR, they sent the JD. Then the job title shifted. First interviewer was not engaging and didn't clarify the new hire's responsibilities. Another HR person took over scheduling, but it was messy with confusing system messages and no personal touch. An interview was set then cancelled. Finally, a rejection email with a 'Do-not-reply' address. Felt like a cog in the machine, not recommended for senior Data Science leaders at Coupang.
Confirmed questions1 question
- Could you share your approach to managing test designs?
Coupang
Staff Data Scientist
Staff Average Positive experience No offer 2 rounds
Interview process
Recruiter call Phone screen
Interview formats
Technical Behavioral
After an initial chat with HR, I had a telephone screening. Both the HR person and the interviewer were nice and upfront about the job and what the role entails. They talked about the company and their plans for this position.
Confirmed questions2 questions
- Can you explain your approach to determining sample size?
- What statistical tests have you used for A/B testing?
Coupang
Data Scientist
Senior Difficult Negative experience No offer 1 round
Interview process
Technical screen
Interview formats
Technical Coding Case
It was a terrible recruiting process, with absolutely no transparency. I felt misled. After submitting my resume, I was immediately scheduled for a technical round. It would have been great to at least have a 15-minute HR chat to ask about the role, team, company, and the rest of the interview process. For the technical round, I didn't know who I'd be speaking with and was told it would be a coding challenge. On the day, they were 10 minutes late. The video call had issues, and the interview wasn't a coding challenge at all; it was mainly a DS/ML case study. It was really misleading.
Confirmed questions3 questions
- How can we reduce the likelihood of a type 1 error in hypothesis testing?
- Given that all IDs are in table_2 but table_1 is missing some, how would you write a SQL query to identify those missing IDs?
- Using only table1, how can we find all missing IDs, assuming the IDs form a complete sequence from 10001 to 11000 without any duplicates?
Coupang Data Scientist Interview Questions
Quoted word for word from Coupang interview reports.
“Using only table1, how can we find all missing IDs, assuming the IDs form a complete sequence from 10001 to 11000 without any duplicates?”
Read reports →“Given that all IDs are in table_2 but table_1 is missing some, how would you write a SQL query to identify those missing IDs?”
Read reports →“Write code for reservoir sampling.”
Read reports →“How can we reduce the likelihood of a type 1 error in hypothesis testing?”
Read reports →“Can you explain the basic theories behind Machine Learning and Databases?”
Read report →“What statistical tests have you used for A/B testing?”
Read report →“Can you explain your approach to determining sample size?”
Read report →“Could you share your approach to managing test designs?”
Read report →“How have you handled coping with deadlines?”
Read report →Formats, difficulty and experience
Across all 8 Coupang interview reports.