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IBM Research Data Scientist Interview Questions and Answers

Updated 15 Oct 2021

IBM Research Data Scientist Interview Experiences

1 interview found

I applied via Recruitment Consultant and was interviewed in Sep 2021. There were 3 interview rounds.

Interview Questionnaire 

3 Questions

  • Q1. Have you ever proposed a project idea on your own before?
  • Q2. Can you briefly describe your project
  • Q3. What are the different types of algorithms used for classification?
  • Ans. 

    There are several algorithms used for classification, including decision trees, logistic regression, k-nearest neighbors, and support vector machines.

    • Decision trees: a tree-like model where each internal node represents a test on an attribute, each branch represents the outcome of the test, and each leaf node represents a class label

    • Logistic regression: a statistical method that uses a logistic function to model a bina...

  • Answered by AI

Interview Preparation Tips

Interview preparation tips for other job seekers - This was a technical round to test the understanding and ability of the candidate related to problem solving.
I answered the question as specifically as possible.
Best way to overcome is to answer what you know and understand in depth.

Skills evaluated in this interview

Interview questions from similar companies

I applied via Campus Placement

Interview Preparation Tips

Round: Resume Shortlist
Experience: Interview was purely technical. Having technical knowledge in analytics and good command on matrix transformations probability and statistics helps.
Tips: Before interview look into basic concepts of analytics such as regression, classification, clustering, etc...

Skills: Probability And Statistics, Ability To Analyse
Duration: 2
College Name: IIT Madras
Motivation: As it is a start up based out of Boston I think I will be a good opportunity to network and also learn about how a company handles data.
Funny Moments: Hr was a North Indian and I am South Indian. There is slight problem for him in pronouncing few words. I had to ask him to repeat the question twice before I answered. It turns out to be a very simple question but we Both struggled
Interview experience
4
Good
Difficulty level
Moderate
Process Duration
Less than 2 weeks
Result
Selected Selected

I applied via Company Website

Round 1 - Resume Shortlist 
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
Round 2 - Coding Test 

Python test to check basic understanding of algo and classs

Round 3 - One-on-one 

(1 Question)

  • Q1. Discussion around project and technical round on ML
Round 4 - HR 

(1 Question)

  • Q1. Basic culture check question and salary discussion expectation.

Interview Preparation Tips

Interview preparation tips for other job seekers - Good company to work for. No major cons.
You will learn a lot
Interview experience
3
Average
Difficulty level
Moderate
Process Duration
Less than 2 weeks
Result
Not Selected

I applied via Company Website and was interviewed before Nov 2023. There was 1 interview round.

Round 1 - Coding Test 

OOPS concept and Dynamic Programming coding challenges

Interview experience
4
Good
Difficulty level
Moderate
Process Duration
Less than 2 weeks
Result
Not Selected

I applied via Approached by Company and was interviewed in Oct 2024. There were 2 interview rounds.

Round 1 - Coding Test 

It was difficult and was on hackerrank

Round 2 - Technical 

(1 Question)

  • Q1. How to find a largest number in a list without using inbuilt function
  • Ans. 

    Iterate through the list and compare each element to find the largest number.

    • Iterate through the list using a loop

    • Compare each element with a variable storing the current largest number

    • Update the variable if a larger number is found

  • Answered by AI
Interview experience
4
Good
Difficulty level
Moderate
Process Duration
Less than 2 weeks
Result
Selected Selected

I applied via Referral and was interviewed in Nov 2024. There were 2 interview rounds.

Round 1 - One-on-one 

(1 Question)

  • Q1. Basic ML questions based on your project, python basic questions
Round 2 - Coding Test 

Basic python questions on pandas,numpy, and basic SQL questions on windows function like lag

Interview experience
4
Good
Difficulty level
Moderate
Process Duration
Less than 2 weeks
Result
Not Selected

I applied via Recruitment Consulltant and was interviewed in May 2023. There were 3 interview rounds.

Round 1 - Resume Shortlist 
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
Round 2 - One-on-one 

(3 Questions)

  • Q1. Machine Learning algorithms
  • Ans. 

    Machine Learning algorithms are used to train models on data to make predictions or decisions without being explicitly programmed.

    • Machine Learning algorithms can be categorized into supervised, unsupervised, and reinforcement learning.

    • Examples of supervised learning algorithms include linear regression, decision trees, and support vector machines.

    • Examples of unsupervised learning algorithms include k-means clustering, ...

  • Answered by AI
  • Q2. Overfitting and underfitting
  • Q3. Questions related to the project
Round 3 - Technical 

(2 Questions)

  • Q1. Questions on project, how much time required for training model
  • Q2. Version control, Flask/ Django, Cloud service experience

Skills evaluated in this interview

I applied via Naukri.com and was interviewed in Jun 2020. There was 1 interview round.

Interview Questionnaire 

2 Questions

  • Q1. There were two rounds of interviews. Both technical. They actually touch base every topic by asking questions out of it. First round- Python fundamental questions on data structures and operations, scenar...
  • Q2. Second round is mainly CV based project discussion. They would try to dig out on advanced concepts which could be bit mathematical. You can be honest and skip it rather than quoting it wrong.

Interview Preparation Tips

Interview preparation tips for other job seekers - Prepare well and be honest. Prepare the fundamentals of Python and ML well.
Interview experience
2
Poor
Difficulty level
-
Process Duration
-
Result
-
Round 1 - Technical 

(2 Questions)

  • Q1. General ML questions
  • Q2. General dl. Questions

Interview Preparation Tips

Interview preparation tips for other job seekers - Dont go to citiustech
Interview experience
3
Average
Difficulty level
-
Process Duration
-
Result
-

I applied via Campus Placement

Round 1 - Coding Test 

Test+2 interviews(technical and statistics)

Round 2 - Case Study 

Basic guestimates and case studies

Interview Preparation Tips

Interview preparation tips for other job seekers - Study hard

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