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EXL Service Senior Data Scientist Interview Questions and Answers for Experienced
Updated
4 Dec 2024
4 interviews found
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Anonymous
Interview experience
Excellent
Difficulty level
-
Duration
-
Result
-
1 Interview Round
1
Technical Round (2 Questions)
- Q1. Gen AI projects Add Answer
- Q2. Architecture of projects I worked Add Answer
Interview experience
Good
Difficulty level
Moderate
Duration
Less than 2 weeks
Result
Selected
I was interviewed before May 2023.
3 Interview Rounds
1
Technical Round (1 Question)
- Q1. Model performance metrics Add Answer
2
Technical Round (1 Question)
- Q1. Xgboost technical details Add Answer
3
Case Study Round
Insurance customer acquisition
Interview Preparation Tips
Interview preparation tips for other job seekers - Good conceptual understanding of basic ML algorithms. And basic coding skills for python and SQL
Interview experience
Excellent
Difficulty level
Moderate
Duration
Less than 2 weeks
Result
Selected
I applied via Naukri.com and was interviewed before May 2022.
4 Interview Rounds
1
Resume Shortlist Round
Pro Tip by AmbitionBox:
Keep your resume crisp and to the point. A recruiter looks at your resume for an average of 6 seconds, make sure to leave the best impression.
View all tips
2
Technical Round (1 Question)
- Q1. Python Questions Add Answer
3
Technical Round (2 Questions)
- Q1. Machine Learning Questions Add Answer
- Q2. Statistics Questions Add Answer
4
HR Round (1 Question)
- Q1. Management Questions Add Answer
I was interviewed in Oct 2021.
3 Interview Rounds
1
Resume Shortlist Round
Pro Tip by AmbitionBox:
Don’t add your photo or details such as gender, age, and address in your resume. These details do not add any value.
View all tips
2
Technical Round (1 Question)
- Q1. Project discussion and basic machine learning Add Answer
3
Technical Round (1 Question)
- Q1. Project discussion, puzzle, deep learning Add Answer
Interview Preparation Tips
Interview preparation tips for other job seekers - Know every detail about all the machine learning projects you have mentioned in your resume.
EXL Service interview questions for designations
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Interview Tips & Stories
2w (edited)
a consultant
Alternate documents for Employee verification?
My new employer asked for my previous offer letters and salary slips. When I inquired, they said it was for background verification.
However, I feel that providing these documents might affect salary negotiations, and it feels a bit unethical too.
What alternative documents can I provide for employment verification?
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Interview questions from similar companies
Interview experience
Excellent
Difficulty level
Moderate
Duration
2-4 weeks
Result
Selected
I applied via Referral and was interviewed in May 2024.
3 Interview Rounds
1
Coding Test Round
I was asked to write SQL queries for 3rd highest salary of the employee, some name filtering, group by tasks.
Python code to find the index of the maximum number without using numpy.
2
One-on-one Round (1 Question)
- Q1. Explain the Project undertaken during the research and follow-up questions Add Answer
3
Technical Round (1 Question)
- Q1. Write pandas query to separate the names as first and last name from the full name. Drop the duplicate columns and also the missing values. Write output for the...read more View Answers (1)
Interview Preparation Tips
Topics to prepare for Nielsen Data Scientist interview:
- Python
- Pandas
- SQL
- Machine Learning
Skills evaluated in this interview
Interview experience
Bad
Difficulty level
-
Duration
-
Result
-
3 Interview Rounds
1
Aptitude Test Round
DSA and ML, AI, Coding question
2
One-on-one Round (1 Question)
- Q1. Case study which was easy Add Answer
3
One-on-one Round (1 Question)
- Q1. In depth questions on ML Add Answer
Interview experience
Good
Difficulty level
Moderate
Duration
6-8 weeks
Result
Selected
I applied via Naukri.com and was interviewed in Oct 2023.
4 Interview Rounds
1
Coding Test Round
Sql, python, Statistics mcq, Aptitude test. These were medium level questions.
2
Technical Round (3 Questions)
- Q1. SQL and python, time complexity Add Answer
- Q2. Make 2 lists a=[1,2,3,4] b=[9,8,5,5,2,3,3,4,1,1,10,9,2,3,4,10,10,9,7,7,8] Write a program to remove duplicate of b and keep only those elements of b which are n...read more View Answers (2)
- Q3. SQL question
Remove duplicate from a table tab1 View Answers (2)
3
Case Study Round
Given 2 case studies on data science and asked different possibilities to improve the models.
How to work with imbalance dataset.
How to remove null values, what is features engineering.
What is PCA
What is the working of XGBOOST
4
Project discussion Round (1 Question)
- Q1. What was last project, tell me in detail.
There were different technical questions related to my project Add Answer
Interview Preparation Tips
Interview preparation tips for other job seekers - Be confident and practice SQL, python, mainly pandas and numpy. Should have good knowledge on time complexity.
All the metrics of evaluating a model.
Linear regression, logestic regression, random forest, decission tree, adaboost, Gradient boosting, XGb in detail.
Recall, precision roc_curve. Auc, f1 score, mse,mae, r2, adjusted r2 score.
Is it possible that r2 score appears in minus
All the metrics of evaluating a model.
Linear regression, logestic regression, random forest, decission tree, adaboost, Gradient boosting, XGb in detail.
Recall, precision roc_curve. Auc, f1 score, mse,mae, r2, adjusted r2 score.
Is it possible that r2 score appears in minus
Skills evaluated in this interview
Interview experience
Average
Difficulty level
Easy
Duration
Less than 2 weeks
Result
Selected
I applied via Approached by Company and was interviewed before Mar 2023.
1 Interview Round
1
One-on-one Round (2 Questions)
- Q1. Past projects of machine learning View Answers (1)
- Q2. Distributed computing and spark questions Add Answer
Skills evaluated in this interview
EXL Service Interview FAQs
How many rounds are there in EXL Service Senior Data Scientist interview for experienced candidates?
EXL Service interview process for experienced candidates usually has 2-3 rounds. The most common rounds in the EXL Service interview process for experienced candidates are Technical, Resume Shortlist and HR.
How to prepare for EXL Service Senior Data Scientist interview for experienced candidates?
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 EXL Service. The most common topics and skills that interviewers at EXL Service expect are Data Science, Machine Learning, Natural Language Processing, SQL and Artificial Intelligence.
What are the top questions asked in EXL Service Senior Data Scientist interview for experienced candidates?
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