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IDFC FIRST Bank Data Scientist Interview Questions, Process, and Tips

Updated 30 Sep 2024

Top IDFC FIRST Bank Data Scientist Interview Questions and Answers

IDFC FIRST Bank Data Scientist Interview Experiences

4 interviews found

Data Scientist Interview Questions & Answers

user image Debanjali Ghosh

posted on 26 Aug 2024

Interview experience
3
Average
Difficulty level
Hard
Process Duration
2-4 weeks
Result
No response

I applied via Naukri.com and was interviewed in Jul 2024. There was 1 interview round.

Round 1 - Technical 

(3 Questions)

  • Q1. Explain Sigmoid Function
  • Ans. 

    Sigmoid function is a mathematical function that maps any real value to a value between 0 and 1.

    • Sigmoid function is commonly used in machine learning for binary classification problems.

    • It is defined as f(x) = 1 / (1 + e^(-x)), where e is the base of the natural logarithm.

    • The output of the sigmoid function is always in the range (0, 1).

    • It is used to convert a continuous input into a probability value.

    • Example: f(0) = 0.5

  • Answered by AI
  • Q2. What is a T-test in logistic regression
  • Ans. 

    A T-test in logistic regression is used to determine the significance of individual predictor variables.

    • T-test in logistic regression is used to test the significance of individual coefficients of predictor variables.

    • It helps in determining whether a particular predictor variable has a significant impact on the outcome variable.

    • The null hypothesis in a T-test for logistic regression is that the coefficient of the predi...

  • Answered by AI
  • Q3. How to fit model to an unexplored market
  • Ans. 

    To fit a model to an unexplored market, conduct thorough market research, gather relevant data, identify key variables, test different models, and continuously iterate and refine the model.

    • Conduct thorough market research to understand the dynamics of the unexplored market

    • Gather relevant data on customer behavior, market trends, competition, etc.

    • Identify key variables that may impact the market and model outcomes

    • Test d...

  • Answered by AI

Interview Preparation Tips

Topics to prepare for IDFC FIRST Bank Data Scientist interview:
  • Logistic Regression
  • Banking

Skills evaluated in this interview

Data Scientist Interview Questions & Answers

user image Himani Tokas

posted on 30 Sep 2024

Interview experience
4
Good
Difficulty level
-
Process Duration
-
Result
-
Round 1 - Technical 

(1 Question)

  • Q1. Focus was on SQL, projects done so far, Machine Learning and Stats

Data Scientist Interview Questions Asked at Other Companies

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Interview experience
4
Good
Difficulty level
Moderate
Process Duration
Less than 2 weeks
Result
No response

I applied via Job Portal and was interviewed in Aug 2023. There were 2 interview rounds.

Round 1 - Aptitude Test 

Aptitude test for about an hour.

Round 2 - One-on-one 

(2 Questions)

  • Q1. Questions related to data science were asked based on your resume. Puzzles were asked too. Mostly they were from gfg.
  • Q2. What are parameters used in a random forest.
  • Ans. 

    Parameters used in a random forest include number of trees, maximum depth of trees, minimum samples split, and maximum features.

    • Number of trees: The number of decision trees to be used in the random forest.

    • Maximum depth of trees: The maximum depth allowed for each decision tree.

    • Minimum samples split: The minimum number of samples required to split a node.

    • Maximum features: The maximum number of features to consider when

  • Answered by AI

Interview Preparation Tips

Interview preparation tips for other job seekers - Be

Skills evaluated in this interview

Interview experience
5
Excellent
Difficulty level
Moderate
Process Duration
6-8 weeks
Result
Selected Selected

I applied via Campus Placement and was interviewed in Dec 2022. There were 4 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 Resume tips
Round 2 - Aptitude Test 

Hard level aptitude questions... Time taking sums

Round 3 - Technical 

(2 Questions)

  • Q1. Puzzles and probability questions
  • Q2. Asking completely about data science projects in your resume
Round 4 - HR 

(2 Questions)

  • Q1. Just asked some puzzle questions
  • Q2. Asked if iam willing to relocate and about my family

Interview Preparation Tips

Topics to prepare for IDFC FIRST Bank Data Scientist interview:
  • Data Science
Interview preparation tips for other job seekers - Be strong on your resume and probability questions also with puzzles

IDFC FIRST Bank interview questions for designations

 Data Analytics

 (1)

 Senior Data Analyst

 (2)

 Analytics Manager

 (1)

 Data Analyst

 (3)

 Data Engineer

 (1)

 Data Entry Operator

 (1)

 Data Science Lead

 (1)

Interview questions from similar companies

I applied via LinkedIn and was interviewed in Oct 2021. There were 5 interview rounds.

Interview Questionnaire 

1 Question

  • Q1. Questions based on various machine learning evaluation metrics.

Interview Preparation Tips

Interview preparation tips for other job seekers - Understand the impact of COVID on the banking industry.
Read about various banking case studies.
Elaborate over your interest in banking domain if you have no prior experience in the same.

I applied via LinkedIn and was interviewed in Oct 2021. There were 5 interview rounds.

Interview Questionnaire 

1 Question

  • Q1. Various machine learning evaluation metrics
  • Ans. 

    Machine learning evaluation metrics are used to measure the performance of a model.

    • Accuracy

    • Precision

    • Recall

    • F1 Score

    • ROC Curve

    • AUC

    • Confusion Matrix

    • Mean Squared Error

    • Root Mean Squared Error

    • R-squared

  • Answered by AI

Interview Preparation Tips

Interview preparation tips for other job seekers - Understand the impact of COVID on the banking industry.
Read more about the banking domain case studies.
Elaborate over your interest in banking domain if you don't have prior experience in this domain.

Skills evaluated in this interview

Interview experience
1
Bad
Difficulty level
Moderate
Process Duration
More than 8 weeks
Result
Selected Selected

I was interviewed in Mar 2023.

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 Resume tips
Round 2 - One-on-one 

(2 Questions)

  • Q1. Python basic concepts
  • Q2. ML algorithm rule, scoring models, library details, statistics questions

Interview Preparation Tips

Interview preparation tips for other job seekers - I strictly won't recommend this company as their HR team is highly unprofessional- they'll discuss the compensation and agree on an amount, and make you wait for a month before rolling out an offer and then suddenly drop your candidature as they can't provide the discussed compensation even if it is according to industry standards.

Absolute waste of time and energy with this Company
Save yourself and find better places to work
Interview experience
5
Excellent
Difficulty level
-
Process Duration
-
Result
-
Round 1 - Technical 

(2 Questions)

  • Q1. Logistic regression loss function
  • Q2. Step function in ML context
  • Ans. 

    Step function is a function that returns a constant value for a certain range of inputs.

    • In machine learning, step functions are used as activation functions in neural networks.

    • They are typically used in binary classification problems where the output is either 0 or 1.

    • Examples include Heaviside step function and sigmoid step function.

  • Answered by AI

Skills evaluated in this interview

Interview experience
2
Poor
Difficulty level
-
Process Duration
-
Result
-
Round 1 - Technical 

(1 Question)

  • Q1. What do you do if your model has higher false positives
  • Ans. 

    Investigate the model performance metrics and adjust the threshold for classification.

    • Analyze the confusion matrix to understand the distribution of false positives.

    • Adjust the threshold for classification to reduce false positives.

    • Consider using different evaluation metrics like precision, recall, and F1 score.

    • Explore feature importance to identify variables contributing to false positives.

  • Answered by AI

Skills evaluated in this interview

Interview experience
4
Good
Difficulty level
-
Process Duration
-
Result
-
Round 1 - Experience 

(2 Questions)

  • Q1. Explain previous projects
  • Q2. Explain 2 algo of your choice

Interview Preparation Tips

Interview preparation tips for other job seekers - No tips just present yourself
Contribute & help others!
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IDFC FIRST Bank Interview FAQs

How many rounds are there in IDFC FIRST Bank Data Scientist interview?
IDFC FIRST Bank interview process usually has 2 rounds. The most common rounds in the IDFC FIRST Bank interview process are Technical, Aptitude Test and Resume Shortlist.
How to prepare for IDFC FIRST Bank 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 IDFC FIRST Bank. The most common topics and skills that interviewers at IDFC FIRST Bank expect are Data Analytics, Data Modeling, Data Science, Machine Learning and Analytical.
What are the top questions asked in IDFC FIRST Bank Data Scientist interview?

Some of the top questions asked at the IDFC FIRST Bank Data Scientist interview -

  1. What is a T-test in logistic regress...read more
  2. How to fit model to an unexplored mar...read more
  3. What are parameters used in a random fore...read more

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IDFC FIRST Bank Data Scientist Interview Process

based on 4 interviews

Interview experience

4
  
Good
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IDFC FIRST Bank Data Scientist Salary
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₹14 L/yr - ₹35 L/yr
61% more than the average Data Scientist Salary in India
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