Upload Button Icon Add office photos

Visa

Compare button icon Compare button icon Compare

Filter interviews by

Clear (1)

Visa Data Scientist Interview Questions and Answers

Updated 15 Jun 2024

Visa Data Scientist Interview Experiences

4 interviews found

Interview experience
5
Excellent
Difficulty level
Easy
Process Duration
2-4 weeks
Result
Not Selected

I applied via Referral and was interviewed in May 2024. There was 1 interview round.

Round 1 - HR 

(2 Questions)

  • Q1. Why are you interested in this role
  • Q2. Provide an example how you solved a problem
  • Ans. 

    I solved a problem by using machine learning algorithms to predict customer churn for a telecom company.

    • Identified relevant data sources such as customer demographics, usage patterns, and customer service interactions.

    • Preprocessed and cleaned the data to handle missing values and outliers.

    • Built and trained a machine learning model using algorithms like logistic regression and random forest.

    • Evaluated the model's perform...

  • Answered by AI
Interview experience
5
Excellent
Difficulty level
-
Process Duration
-
Result
-
Round 1 - HR 

(2 Questions)

  • Q1. When is your Availability
  • Q2. Expectation from us
  • Ans. 

    I expect a supportive work environment, opportunities for growth, and clear communication.

    • Clear communication on project goals and expectations

    • Opportunities for professional development and growth

    • Supportive team environment

    • Regular feedback and performance evaluations

  • Answered by AI

Data Scientist Interview Questions Asked at Other Companies

Q1. for a data with 1000 samples and 700 dimensions, how would you fi ... read more
Q2. Special Sum of Array Problem Statement Given an array 'arr' conta ... read more
asked in Affine
Q3. you have a pandas dataframe with three columns, filled with state ... read more
Q4. Clone a Linked List with Random Pointers Given a linked list wher ... read more
asked in Coforge
Q5. coding question of finding index of 2 nos. having total equal to ... read more

Data Scientist Interview Questions & Answers

user image Pranjal Singh

posted on 14 Jan 2015

Interview Preparation Tips

Round: Test
Duration: 120 minutes
Total Questions: 42

Round: Test
Experience: There was a test for VISA which had following sections:
Assessment Composition:
1. Coding Skills: 2 Questions - Very simple problems - 30 marks total
2. Programming: 10 Questions - Simple Java Questions --Access modifiers, inline function, Red black tree, heap
3. Machine Learning Hadoop MCQ: 6 Questions You can't answer a single question if ML/BigData is remote-land for you.
4. Networking MCQ: 6 Questions - Again basics. Data layer questions. IP class basic question, fields in ethernet header.
5. Operating System: 6 Questions - Memory management mostly
6. Infrastructure: 6 Questions - Real life scenarios - server client questions.
7. Application Security: 6 Questions
Duration: 120 minutes
Total Questions: 42

Round: Interview
Experience: Questions from all CS subjects including coding
Tips: They shortlisted 29 students for the final interviews on Day 1 Slot 1.
There were 2 rounds of technical interview and 1 interview.

General Tips: Do’s
1)      Start right from August 
2)      Prepare basics of subjects
3)      Try to code using pen and paper
4)      Code as many problems as you can from all domains with only 1 language (C/C++/Java)
5)      Keep a friend with you at all times during interviews. If you are selected for more than 1 companies in 1 slot, ask your friend to manage your interview schedules given he knows your priorities. I was not in a position to attend more than 2 interviews in the same slot.
Don’ts
1)      Don’t lose hope if you are not shortlisted for your dream company or any company of your choice because being an IITian you have large number of better choices and which would fit in your profile better.
2)      Don’t argue with the interviewers and never pretend that your are over smart in a given domain.
3)      Do not take HR rounds lightly even if you are sitting for CS companies.
Skills: C++
College Name: IIT Kanpur
Motivation: Role of my interest

Interview Preparation Tips

Round: Technical Interview
Experience: The technical interview included a VP round which was more of a resume round. I concentrated my interview (VP round) on Machine learning which my field is. This was kind of a trick because many people screwed up this round. Hence, VP offered to me to work in VISA HQ.

Round: Technical Interview
Experience: This technical round included questions from almost all topics of CS (SQL query, coding, Networks, Security, Hadoop and Map-Reduce).

General Tips: Do’s :
1) Start right from August
2) Prepare basics of subjects
3) Try to code using pen and paper
4) Code as many problems as you can from all domains with only 1 language (C/C++/Java)
5) Keep a friend with you at all times during interviews. If you are selected for more than 1
companies in 1 slot, ask your friend to manage your interview schedules given he knows your
priorities. I was not in a position to attend more than 2 interviews in the same slot.

Don’ts :
1) Don’t lose hope if you are not shortlisted for your dream company or any company of your choice because being an IITian you have large number of better choices and which would fit in your profile better.
2) Don’t argue with the interviewers and never pretend that you are over smart in a given domain.
3) Do not take HR rounds lightly even if you are sitting for CS companies.

Final Tips :
Start your preparation early. Placement is 90% preparation and 10% luck.
College Name: IIT Kanpur

Visa interview questions for designations

 Associate Data Scientist

 (1)

 Senior Data Scientist

 (1)

 Data Science Engineer

 (1)

 Data Engineer

 (4)

 Data Analyst

 (1)

 Data Engineer Staff

 (2)

 Senior Data Engineer

 (2)

 Data Engineering Intern

 (1)

Data Scientist Jobs at Visa

View all

Interview questions from similar companies

I applied via Campus Placement and was interviewed before Feb 2019. There were 3 interview rounds.

Interview Questionnaire 

4 Questions

  • Q1. 1. How to choose optimum probability threshold from ROC?
  • Ans. 

    To choose optimum probability threshold from ROC, we need to balance between sensitivity and specificity.

    • Choose the threshold that maximizes the sum of sensitivity and specificity

    • Use Youden's J statistic to find the optimal threshold

    • Consider the cost of false positives and false negatives

    • Use cross-validation to evaluate the performance of different thresholds

  • Answered by AI
  • Q2. 2. How to test time series trend break up?
  • Ans. 

    To test time series trend break up, statistical tests like Augmented Dickey-Fuller test can be used.

    • Augmented Dickey-Fuller test can be used to check if a time series is stationary or not.

    • If the time series is not stationary, we can use differencing to make it stationary.

    • After differencing, we can again perform the Augmented Dickey-Fuller test to check for stationarity.

    • If there is a significant change in the mean or va...

  • Answered by AI
  • Q3. 3. How do you deal with senior customer when you don't have enough data?
  • Ans. 

    Communicate transparently and offer alternative solutions.

    • Explain the limitations of the available data and the potential risks of making decisions based on incomplete information.

    • Offer alternative solutions that can be implemented with the available data.

    • Collaborate with the customer to identify additional data sources or explore other options to gather more data.

    • Provide regular updates on the progress of data collect...

  • Answered by AI
  • Q4. 4. Do you prefer working in clear defined goal space or where customer isn't sure what he wants?

Interview Preparation Tips

Interview preparation tips for other job seekers - Be business specific.

Skills evaluated in this interview

Interview experience
3
Average
Difficulty level
Easy
Process Duration
Less than 2 weeks
Result
No response

I applied via LinkedIn and was interviewed in Apr 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 Resume tips
Round 2 - Coding Test 

A Hackerank test with 2 SQL questions and 7 MCQ questions on Probablity,Naive Bayes,Excel 7 some Graph analysis questions

Round 3 - One-on-one 

(1 Question)

  • Q1. Didn't hear back after the test , later was rejected
Interview experience
1
Bad
Difficulty level
-
Process Duration
-
Result
-
Round 1 - One-on-one 

(1 Question)

  • Q1. Describe your past exp
Interview experience
4
Good
Difficulty level
-
Process Duration
-
Result
-
Round 1 - Technical 

(1 Question)

  • Q1. SQL and background related questions
Interview experience
4
Good
Difficulty level
-
Process Duration
-
Result
-
Round 1 - Coding Test 

Python, general data related coding

Interview experience
5
Excellent
Difficulty level
Hard
Process Duration
4-6 weeks
Result
Selected Selected

I applied via Recruitment Consulltant and was interviewed before Sep 2023. There were 2 interview rounds.

Round 1 - Coding Test 

SQL and python questions

Round 2 - Case Study 

Regarding some puzzles and guestimate

Contribute & help others!
anonymous
You can choose to be anonymous

Visa Interview FAQs

How many rounds are there in Visa Data Scientist interview?
Visa interview process usually has 1 rounds. The most common rounds in the Visa interview process are HR.
How to prepare for Visa 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 Visa. The most common topics and skills that interviewers at Visa expect are Python, SQL, Computer science, Machine Learning and Data Analysis.
What are the top questions asked in Visa Data Scientist interview?

Some of the top questions asked at the Visa Data Scientist interview -

  1. provide an example how you solved a prob...read more
  2. Expectation from...read more

Recently Viewed

INTERVIEWS

Nextgen Printers

No Interviews

SALARIES

Ramco Systems

REVIEWS

Caterpillar Inc

No Reviews

REVIEWS

BeyondSkool

No Reviews

SALARIES

Audax Labs

No Salaries

SALARIES

Smart IMS

SALARIES

Hind Electricals

Tell us how to improve this page.

Visa Data Scientist Interview Process

based on 2 interviews

Interview experience

5
  
Excellent
View more
Visa Data Scientist Salary
based on 27 salaries
₹17 L/yr - ₹46 L/yr
132% more than the average Data Scientist Salary in India
View more details
Sr. Data Scientist

Bangalore / Bengaluru

8-13 Yrs

Not Disclosed

Explore more jobs
Senior Software Engineer
620 salaries
unlock blur

₹0 L/yr - ₹0 L/yr

Software Engineer
212 salaries
unlock blur

₹0 L/yr - ₹0 L/yr

Staff Software Engineer
153 salaries
unlock blur

₹0 L/yr - ₹0 L/yr

Senior Software Test Engineer
87 salaries
unlock blur

₹0 L/yr - ₹0 L/yr

Senior Data Engineer
85 salaries
unlock blur

₹0 L/yr - ₹0 L/yr

Explore more salaries
Compare Visa with

MasterCard

3.9
Compare

American Express

4.2
Compare

PayPal

3.9
Compare

State Bank of India

3.8
Compare
Did you find this page helpful?
Yes No
write
Share an Interview