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TCS Senior Data Scientist Interview Questions, Process, and Tips

Updated 31 Aug 2024

Top TCS Senior Data Scientist Interview Questions and Answers

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2 TCS Senior Data Scientist Interview Experiences

11 questions found

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Senior Data Scientist Interview Questions

user image Anonymous

posted on 31 Aug 2024

Interview experience
1
 Bad
Difficulty level
 Moderate
Duration
 -
Result
 Not Selected

I applied via LinkedIn and was interviewed in Jul 2024.

1 Interview Round

1

Technical Round (7 Questions)

  • Q1. Difference between attention and self attention
  • Q2. Project related questions
  • Q3. Feature engineering
  • Q4. Handling null values
  • Q5. Handling imbalanced training data
  • Q6. Overfitting optimize
  • Q7. What is text embeddings

Interview Preparation Tips

Interview preparation tips for other job seekers - The interviewer wanted bookish answers and was kinda rude for no reason and wasn't interested in listening

Skills evaluated in this interview

Senior Data Scientist Interview Questions

user image Anonymous

posted on 4 Mar 2024

Interview experience
4
 Good
Difficulty level
 Easy
Duration
 4-6 weeks
Result
Selected  Selected

I applied via Approached by Company and was interviewed before Mar 2023.

1 Interview Round

1

Technical Round (4 Questions)

  • Q1. What is F Score
  • Q2. What is TFIDF in NLP
  • Q3. What is cosine similarity
  • Q4. How do you generate embeddings

Skills evaluated in this interview

Get interview-ready with top interview questions

Interview questions from similar companies

Interview experience
3
 Average
Difficulty level
 Moderate
Duration
 Less than 2 weeks
Result
 Not Selected

I applied via Approached by Company and was interviewed in Sep 2024.

1 Interview Round

1

Technical Round (2 Questions)

  • Q1. Gave one easy question and asked what will be the output
  • Q2. Leetcode 2 sum question

Interview Preparation Tips

Interview preparation tips for other job seekers - I was pretty much sure that I would pass L1 round and hoping for L2 round. I was interviewing for Generative AI Engineer. It was full 1 hr. The interviewer was less experienced than me. He asked me about my current work and focused more on previous work. I gave 80% correct answers and still did not make it. Don't know what they were expecting from me. Then I thought, maybe they are just taking the interview for the name sake. Sometimes, rejections are baseless.
Interview experience
4
 Good
Difficulty level
 Moderate
Duration
 2-4 weeks
Result
Selected  Selected

I applied via Company Website and was interviewed in Jun 2024.

3 Interview Rounds

1

Technical Round (4 Questions)

  • Q1. Question From Regression, classification and clustering Algorithm.
  • Q2. Bagging and boosting
  • Q3. How to handel less dataset for regression problems
  • Q4. Python Coding and some scenario based ML question.
2

One-on-one Round (2 Questions)

  • Q1. Question from My project and mentioned skills in resume
  • Q2. How will you lead team and what your ways.
3

HR Round (1 Question)

  • Q1. Salary and Notice period

Interview Preparation Tips

Interview preparation tips for other job seekers - Be crips in your resume and have good confidence to express yourself.

Skills evaluated in this interview

Interview experience
4
 Good
Difficulty level
 Hard
Duration
 Less than 2 weeks
Result
Selected  Selected

I applied via Recruitment Consulltant and was interviewed in Jul 2024.

3 Interview Rounds

1

Technical Round (1 Question)

  • Q1. Deep questions about Machine learning, Deep learning, Generative AI, the working of transformers etc.
2

Technical Round (1 Question)

  • Q1. Deep questions about Machine learning and deep learning with projects done. This was a client round.
3

HR Round (1 Question)

  • Q1. Salary discussion, project discussion, why change? Why Wipro
Interview experience
3
 Average
Difficulty level
 -
Duration
 -
Result
 -

1 Interview Round

1

One-on-one Round (1 Question)

  • Q1. Basics of Machine Learning, Gradient Descent, Trade-off, etc.
Interview experience
5
 Excellent
Difficulty level
 Easy
Duration
 Less than 2 weeks
Result
Selected  Selected

I applied via Campus Placement and was interviewed before Aug 2023.

4 Interview Rounds

1

Aptitude Test Round

It was based on logical reasoning and verbal along with speech recognition

2

Coding Test Round

Python based basic questions like sort find maximum

3

Technical Round (1 Question)

  • Q1. They asked all the questions based on my projects.
4

HR Round (1 Question)

  • Q1. Simple he procedure
Interview experience
4
 Good
Difficulty level
 Moderate
Duration
 -
Result
 -

1 Interview Round

1

Technical Round (1 Question)

  • Q1. Explain BERT Model Architecture and It differs form GPT

Interview Preparation Tips

Interview preparation tips for other job seekers - Know your Project well , what are problem you faced how you solved them techniques used concept behind the technique

Skills evaluated in this interview

I applied via Naukri.com and was interviewed in Jan 2022.

3 Interview Rounds

1

Technical Round (1 Question)

  • Q1. Almost everything from statistics to EDA & ML models
2

Technical Round (1 Question)

  • Q1. Mostly on projects I've already done, especially on last project and project of the interviewer
3

HR Round (6 Questions)

  • Q1. What are your salary expectations?
  • Q2. What is your family background?
  • Q3. Share details of your previous job.
  • Q4. Why should we hire you?
  • Q5. Why are you looking for a change?
  • Q6. Tell me about yourself.

Interview Preparation Tips

Interview preparation tips for other job seekers - learn basics correctly.
understand everything from your projects.
thats it..rock it
Interview experience
5
 Excellent
Difficulty level
 Easy
Duration
 Less than 2 weeks
Result
Selected  Selected

I applied via Naukri.com and was interviewed in Apr 2023.

3 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. 1. 2 python coding questions. First one was to find common elements between given 2 arrays. Second was to reverse the string and return back. 2. Discussions on ...read more
3

Technical Round (1 Question)

  • Q1. 1.Discussions on project, one case study given related to data science and other behavioral questions asked.

Interview Preparation Tips

Interview preparation tips for other job seekers - 1.Have good understanding of basic python, SQL will suffice.
2.Have a good grasp on project you have done.

TCS Interview FAQs

How many rounds are there in TCS Senior Data Scientist interview?
TCS interview process usually has 1 rounds. The most common rounds in the TCS interview process are Technical.
How to prepare for TCS Senior Data Scientist interview?
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 TCS. The most common topics and skills that interviewers at TCS expect are Data Science, Python, Deep Learning, Machine Learning and Artificial Intelligence.
What are the top questions asked in TCS Senior Data Scientist interview?

Some of the top questions asked at the TCS Senior Data Scientist interview -

  1. What is text embeddi...read more
  2. What is cosine similar...read more
  3. How do you generate embeddi...read more

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