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MasterCard Data Science Intern Interview Questions and Answers

Updated 17 Jan 2025

MasterCard Data Science Intern Interview Experiences

1 interview found

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

General DSA with some ds questions

Round 2 - One-on-one 

(3 Questions)

  • Q1. Walk through resume
  • Ans. 

    I will walk through my resume highlighting key experiences and skills.

    • Started with education background, mentioning degrees and relevant coursework

    • Highlighted previous internships or work experience in data science or related fields

    • Discussed projects worked on, including tools and techniques used

    • Mentioned any relevant skills such as programming languages, statistical analysis, and machine learning algorithms

  • Answered by AI
  • Q2. Reverse linked list
  • Q3. Use of oops in some cases
  • Ans. 

    Object-oriented programming (OOP) is useful for creating reusable code, organizing complex systems, and modeling real-world entities.

    • Encapsulation: OOP allows for bundling data and methods into objects, providing data security and reducing complexity.

    • Inheritance: OOP enables the creation of new classes based on existing ones, promoting code reuse and reducing redundancy.

    • Polymorphism: OOP allows objects to be treated as...

  • Answered by AI

Interview questions from similar companies

Interview Questionnaire 

1 Question

  • Q1. Explain about self introduction

I applied via Campus Placement

Interview Preparation Tips

Round: Resume Shortlist
Experience: My resume had a couple of projects and a paper publication added to it, which was a part of my second year intern at TCS Innovation Labs.

Tips: I believe that the resume shortlist to appear for the test is just a formality and not a big deal to get through. Most of the students are allowed to appear for the test which is where, the main shortlisting occurs.
Although, the company does cut off people from certain departments. For example, none of the Agriculture and food engineering students were shortlisted for appearing for the test.
Also, from what I have heard, the company runs resumes through a program to take out the shortlist. Hence, certain key words such as "Scholar" or "Conference" may get you a good chance to get through the shortlisting.

Round: Test
Experience: The test is mainly quant based and how fast you can think and rationalize. They expect excellent speed; they ask you 20 questions to be answered in 30 minutes.
Tips: Normally, if a student is asked to appear for this right after his JEE examination, he would be able to get through it easily. But since our analytical thinking goes way down once we actually get in, it has to be worked upon again. I'd suggest you to solve all the quant questions of any CAT preparatory book for the American Express test. The test questions are quite similar to those that the CAT students prepare for.

Round: Technical Interview
Experience: In general, the American Express interviews are considered to be pretty peaceful compared to the interviews of other companies. I was just asked about my work at TCS Innovation Labs and the paper I would be publishing based on that work and the courses I have done in Data Analytics and what all do I know in it. They do not test the knowledge you say you possess.
Tips: While I was preparing for my interview, I was told to read about Amex and its products. Secondly, and most importantly, I was aksed to read a lot about credit card frauds and suggest ways of preventing that. Even during my time, a lot of people were asked about this and judged severely on that. This is a must must if you would be appearing for its interview.

Also, you would do well if you are able to connect with the interviewer. For instance, if both of you have been a part of the same inter IIT or have the same tastes, etc.

Also, the interviews are that peaceful that you are able to direct the interview in your favour. There are certain parts of your CV that you can easily talk about and certain parts that you would want to avoid. If you are able to think on your feet, it is easy to re direct the interview in your favour and the things that you would like to talk about; in my case, it was my work at TCS.

Round: Puzzle Interview
Experience: The main decision whether you have to be taken in or not is decided in your first round of interview after which, the puzzle interview is just a formality and to find out whether you are able to think on your feet or not. Not a big deal, pretty easy.
Tips: Nothing to be worried about, the puzzles asked are pretty easy and most probably, you would have already heard them if you have a nag of solving puzzles.

General Tips: Do not worry or stress yourself much. The interview is pretty easy if you have an edge in the skills that the company wants. I had started studying Data Analytics in my second year summer vacations, just 1 hour a day for hardly about a month. Which gave me enough of an edge. The main hurdle lies in getting through the test round where about 300 people are simply cut off.
Skill Tips: You should be able to code efficiently. Knowledge in Python and SQL is a big plus.
Also, I had done a course on Coursera called "Machine Learning" of Stanford University. Today, the company does not expect a lot of knowledge in Data Analytics from students which is why this course gave me the edge I needed to get through the interview. It's a pretty easy course and not very demanding. I would recommend this if you want to find out even whether you'd be interested in Data Analytics or not.
I was asked about the things I know and whether I have ever implemented them.
Skills: Analytics And Coding
Duration: 2
College Name: IIT Kharagpur
Motivation: American Express is known to have a good working culture and is currently the third best company to work for in India. The internship stipend is largest compared to any other company in India along with accommodation and travel. The company has a well structured internship program and also has good challenging work to offer.
Funny Moments: After the test, I was not shortlisted for the interview round.. Which broke my heart.
Just after the presentation, I walked up to the person presenting and handed him a hard copy of my resume asking him to at least give me a shot at the interview if they think my profile is good enough.
I believe that this was a turning point of this entire experience. I believe, at that moment itself, I gained their favour to take me in. Which is probably why my interview was peaceful, which is probably why I could get through even though my interview was the last among a bunch of 25 students..

I applied via Walk-in and was interviewed in Apr 2021. There was 1 interview round.

Interview Questionnaire 

1 Question

  • Q1. About your self

Interview Preparation Tips

Interview preparation tips for other job seekers - please select my profile

Data Analyst Interview Questions & Answers

PayPal user image AKASH KUMAR SINGH

posted on 2 Dec 2016

I applied via Campus Placement and was interviewed in Dec 2016. There were 6 interview rounds.

Interview Questionnaire 

4 Questions

  • Q1. For this round he gave me lot of problems and asked to develop optimal algorithm to solve that. Problems were mainly on trees and number sequences
  • Q2. In this round he mainly discussed my projects and asked me how these can be put to use in Paypal. He also asked some basic questions from ML
  • Q3. HR round was just for formality
  • Q4. Probability , question on calculating expected number of trials and puzzles

Interview Preparation Tips

Round: Test
Experience: The coding question was:
Given a binary string containing 0's and 1's. You can split the string such that each partition should be a exponential of 5 (1,5,25,625...). You were asked to return minimum number of partition for the given string such each partition is exponential of 5. If no such partition exists return -1.
Examples: '101101101' Ans: 3 (101, 101, 101)
'111' Ans: 3 (1,1,1)
10101 Ans: -1
Tips: For MCQ's prepare DSA, OS and Networking. For DSA you can refer to cormen
For Coding question practice on either geeksforgeeks or from any of the coding platforms like hackerrank
The shortlist was mainly dependent on coding question
Duration: 1 hour 30 minutes

Round: Puzzle Interview
Tips: Do lot of puzzles from heard on the street, -----/ , Try to search for more. It will be helpful in other interviews as well

Round: Technical Interview
Tips: Practice algorithm section from geeksforgeeks. There are lot of standard problems. The given questions were slightly modified version of standard problems

Round: Technical Interview
Tips: For this round you need to be well prepared with your projects and resume.

College Name: IIT Madras

Data Analyst Interview Questions & Answers

Visa user image Vishwesh Dayama

posted on 18 Dec 2024

Interview experience
4
Good
Difficulty level
-
Process Duration
-
Result
-
Round 1 - One-on-one 

(2 Questions)

  • Q1. SQL Joins and remove duplicates
  • Q2. Function to create a transaction bin column
  • Ans. 

    Create a function to generate a transaction bin column based on transaction amounts.

    • Create bins based on transaction amounts (e.g. $0-$100, $101-$200, etc.)

    • Use pandas cut() function in Python to create bins

    • Assign bin labels to the transactions based on the bin ranges

  • Answered by AI

Data Analyst Interview Questions & Answers

PayPal user image Snehith Korukonda

posted on 21 Aug 2024

Interview experience
4
Good
Difficulty level
-
Process Duration
-
Result
-

I applied via Naukri.com and was interviewed in Jul 2024. There were 4 interview rounds.

Round 1 - Aptitude Test 

Topics were, DSA, SQL, PL/SQL, Data Augmentation

Round 2 - Coding Test 

Customer churn classification using a classification ML model

Round 3 - Technical 

(2 Questions)

  • Q1. Write a pseudo code for Bubble sort
  • Ans. 

    Bubble sort is a simple sorting algorithm that repeatedly steps through the list, compares adjacent elements, and swaps them if they are in the wrong order.

    • Start with the first element and compare it with the next element, swapping if necessary

    • Repeat this process for each pair of adjacent elements in the array until the entire array is sorted

    • Continue this process for each element in the array until no more swaps are ne

  • Answered by AI
  • Q2. What is an API
  • Ans. 

    An API (Application Programming Interface) is a set of rules and protocols that allows different software applications to communicate with each other.

    • APIs define the methods for requesting and receiving data between software applications

    • APIs can be used to access data from external sources, such as social media platforms or weather services

    • Examples of APIs include the Twitter API, Google Maps API, and Spotify API

  • Answered by AI
Round 4 - HR 

(2 Questions)

  • Q1. Tell me about yourself
  • Ans. 

    I am a data analyst with a strong background in statistics and data visualization.

    • Graduated with a degree in Statistics

    • Proficient in programming languages like Python and R

    • Experience in analyzing large datasets and creating data visualizations

    • Strong problem-solving skills and attention to detail

  • Answered by AI
  • Q2. Salaray compensation how much

Skills evaluated in this interview

Interview experience
4
Good
Difficulty level
Moderate
Process Duration
-
Result
Not Selected

I applied via Job Portal and was interviewed in Aug 2024. There were 2 interview rounds.

Round 1 - Aptitude Test 

Sql and aptitude questions

Round 2 - Technical 

(2 Questions)

  • Q1. Question from resume amd project
  • Q2. Some questions on sql

I applied via Company Website

Interview Questionnaire 

1 Question

  • Q1. Tell me about a project you worked on in which you handled large set of data and multiple tables.

Interview Preparation Tips

Interview preparation tips for other job seekers - Share your geniune answers, articulate them well and be yourself.
Interview experience
3
Average
Difficulty level
Moderate
Process Duration
More than 8 weeks
Result
Selected Selected

I applied via Referral and was interviewed before Apr 2022. 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 - One-on-one 

(1 Question)

  • Q1. SQL Window functions projects
Round 3 - Technical 

(1 Question)

  • Q1. ML questions case study

Interview Preparation Tips

Interview preparation tips for other job seekers - prepare projects on resume and ML algorithms along with SQL questions
Contribute & help others!
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MasterCard Interview FAQs

How many rounds are there in MasterCard Data Science Intern interview?
MasterCard interview process usually has 2 rounds. The most common rounds in the MasterCard interview process are Coding Test and One-on-one Round.
What are the top questions asked in MasterCard Data Science Intern interview?

Some of the top questions asked at the MasterCard Data Science Intern interview -

  1. Use of oops in some ca...read more
  2. Reverse linked l...read more

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MasterCard Data Science Intern Interview Process

based on 1 interview

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