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      MathCo

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      Associate Data Scientist Interview

      17 Aug 2019
      Anonymous interview candidate
      Bengaluru

      Other Associate Data Scientist interview reviews for MathCo

      Associate Data Scientist Interview

      22 Dec 2022
      Anonymous interview candidate
      Mumbai
      Declined offer
      No offer
      Neutral experience
      Average interview

      Application

      I applied through university. The process took 1 day. I interviewed at MathCo (Bengaluru) in Jul 2019

      Interview

      - 2 technical face to face rounds - The welcome was warm at their bangalore office and their hr, marketing teams were assisting the entire process. - The interviewer was chip on his shoulder. He was wearing shorts( Not judging by the looks but could have worn atleast casuals ), was ordering food in swiggy during the interview, went out to receive the parcel, kind of opened his parcel and had little food. He was also not in the mood to listen to any of his candidates. He tried to create a technical stress round, yet the way he tried to create it was not good.

      Interview questions [9]

      Question 1

      Explain the business requirement for your college capstone project ? How does it help the current business process improve ? what metrics can be improved using this project ?
      Answer question

      Question 2

      Explain the data preprocessing steps that you have in your projects ? Will preprocessing solve all the issues with the model that you build ?
      Answer question

      Question 3

      How do you treat outliers ? Is clipping method used to treat outliers statistically correct ?
      Answer question

      Question 4

      Explain confusion matrix ? Difference between rsquared and adjusted rsquared ?
      Answer question

      Question 5

      Explain PCA (Wanted me to explain the co-variance matrix and eigen vectors and values and the mathematical expression and mathematical derivation for co-variance matrix)
      Answer question

      Question 6

      What are types of neural networks ? What is back propagation ? ( Wanted the gradient descent process also explained with the math behind it)
      Answer question

      Question 7

      Explain CNNs
      Answer question

      Question 8

      One python data wrangling questions, He gave a dataframe and wanted me to transform based on mean. He generally wanted me to use group by.
      Answer question

      Question 9

      Logical : How do you cut a cake into 8 equal parts using only 3 straight cuts ?
      Answer question
      7
      Positive experience
      Average interview

      Application

      I applied through an employee referral. The process took 2 weeks. I interviewed at MathCo (Mumbai) in Nov 2022

      Interview

      There will be four rounds. 1. HR screening (basic information and questions) 2. Techincal round (checking your technical skills, coding questions about Python and SQL) 3. Technical round 2 (Small case study explanation) 4. HR Round: (More about you and company, situation based questions)

      Interview questions [1]

      Question 1

      How will you handle angry clients?
      Answer question

      Associate Data Scientist Interview

      22 Oct 2022
      Anonymous interview candidate
      Bengaluru
      No offer
      Negative experience
      Easy interview

      Application

      I applied online. The process took 3 days. I interviewed at MathCo (Bengaluru) in Oct 2022

      Interview

      First round was a technical one. Interviewer asked about the past projects and questions related to it. I explained him the end to end project and answered all his questions, but in reality interviewer himself didn't know how to ask questions related to project/data science. 5 minutes later I got the mail that I have cleared the interview, but they offered me the position of data analysis for which there was no opening at that time. So eventually they couldn't move forward with me. Companies like these are a total time waste. They simply don't respect the importance of time. So it was a negative experience for me.

      Interview questions [1]

      Question 1

      - Started with the past projects and questions related to it - A bit of SQL
      Answer question

      Associate Data Scientist Interview

      30 Nov 2022
      Anonymous employee
      Pune
      Accepted offer
      Positive experience
      Average interview

      Application

      I applied online. I interviewed at MathCo (Pune) in Sept 2022

      Interview

      I applied through their careers site and got a call the next day. I had three rounds of interviews. 1. Technical Round - Python , SQL, Machine Learning Algos. 2. Fitment Round - Only higher level discussion on the earlier Projects, Hobbies out of work, etc. 3. HR Round

      Interview questions [1]

      Question 1

      1. Basics of python Coding. 2. Basics of all the Machine Learning Models. 2. Basic SQL Queries. 3. Brief discussion on the projects you have worked on.
      Answer question
      2