EPAM Systems Senior Data Scientist interview questions
based on 12 ratings - Updated Mar 24, 2026
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EPAM Systems interviews FAQs
Candidates applying for Senior Data Scientist roles take an average of 21 days to get hired, when considering 1 user submitted interviews for this role. To compare, the hiring process at EPAM Systems overall takes an average of 22 days.
Common stages of the interview process at EPAM Systems as a Senior Data Scientist according to 1 Glassdoor interviews include:
One on one interview: 50%
Skills test: 50%
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4 rounds including 1 online test. Interview was good, But the HR behavior is very bad. She rushed me to finish all rounds, i cleared all and also shared all the required documents to generate an offer. On one friday she requested me to share the documents saying she will send me offer on Monday. But then on she started giving some lame reasons with improper response and finally said position is on hold. Very unacceptable work from such a big company wasting my time and effort. Disappointed.
Interview questions [1]
Question 1
Resume, ML, Python, They will cover your resume end to end
I applied through a recruiter. The process took 2 weeks. I interviewed at EPAM Systems in Nov 2025
Interview
1st round of 1.5 hr consisting of technical discussion and some DSA live coding questions in python
2nd round with manager consisting of technical discussion with DSA live coding questions
Interview questions [3]
Question 1
GenAI based technical questions related to RAG strategies, how to improve, etc
Python internals like time complexity of set operation, difference between init and new methods, decorators, etc
I applied through a recruiter. The process took 4 weeks. I interviewed at EPAM Systems (Singapura) in Jan 2025
Interview
5 round process, which includes HR Screening, online test, technical interview, a business interview and a client interview.
Online test was MCQ foundational data science questions so it was pretty straightforward. Technical interview lasted for 2 hours which consists of resume review, theory questions and a live coding test. Aside for the long session, the technical interview was pretty average and foundational. Tested a broad range of DS topics from ML, CV and GenAi. Wasnt able to complete 2 out of the 6 coding tests but was able to progress.
Business round was a casual discussion with hiring manager. Had great feedback after the interview but didnt get a callback for the final client round.
Overall, pleasant process and all of my 4 rounds were completed in 1 month.
Interview questions [1]
Question 1
- Explain how BN/LN works in NN
- How does CNN works
- What is transformer architecture