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Blackstraw AI Senior Data Scientist Interview Questions and Answers

Updated 28 Feb 2024

Blackstraw AI Senior Data Scientist Interview Experiences

1 interview found

Interview experience
5
Excellent
Difficulty level
Moderate
Process Duration
Less than 2 weeks
Result
Selected Selected

I was interviewed before Feb 2023.

Round 1 - Technical 

(5 Questions)

  • Q1. 1. difference between list & tuple 2. describe your day-to-day work 3. describe your favourite project
  • Ans. 

    List is mutable, tuple is immutable. Day-to-day work involves data analysis and modeling. Favorite project involved developing a predictive analytics model.

    • List can be modified after creation, tuple cannot

    • List uses square brackets [], tuple uses parentheses ()

    • Day-to-day work includes data cleaning, exploratory data analysis, model building, and communication of results

    • Favorite project involved collecting and analyzing ...

  • Answered by AI
  • Q2. How does your day look like
  • Q3. Your favourite project
  • Q4. Difference between regression & classification based algorithms
  • Ans. 

    Regression predicts continuous values, while classification predicts discrete values.

    • Regression algorithms predict continuous values, such as predicting house prices based on features like size and location.

    • Classification algorithms predict discrete values, such as classifying emails as spam or not spam based on content.

    • Regression algorithms include linear regression, polynomial regression, and support vector regressio...

  • Answered by AI
  • Q5. Difference between RNN & CNN
  • Ans. 

    RNN is used for sequential data like time series, while CNN is used for spatial data like images.

    • RNN processes sequential data by maintaining memory of past inputs, suitable for time series forecasting.

    • CNN is designed for spatial data like images, using filters to extract features and patterns.

    • RNN is good for text data analysis, language translation, and speech recognition.

    • CNN is commonly used in image recognition, obj

  • Answered by AI

Skills evaluated in this interview

Senior Data Scientist Jobs at Blackstraw AI

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Interview questions from similar companies

Interview Questionnaire 

1 Question

  • Q1. What friends think of you?
  • Ans. 

    My friends think of me as reliable, supportive, and always up for a good time.

    • Reliable - always there when they need help or support

    • Supportive - willing to listen and offer advice

    • Fun-loving - enjoys socializing and trying new things

  • Answered by AI

Interview Preparation Tips

Round: Resume Shortlist
Experience: After Resume Shortlist we had an aptitute round.
Tips: Answer according to your own judgement. Dont try to be too precise.

Round: HR Interview
Experience: I said they think I am a workaholic as I prefer to complete my work before chilling with them.

College Name: NIT Durgapur

Interview Preparation Tips

Round: HR Interview
Experience: Interview at 11 pm. Stressed environment, close to stress interview.
SELECTION PROCEDURE:
1.Online Test
2. GD
3. PI(HR)
GD TOPICS :
Topic 1 : How can education system benefit from interdisciplinary methods.
Topic 2 : Interconnected problems in the field of movie making.
INTERVIEW EXPERIENCE:
So you can speak German? Describe MS Dhoni in german. They opened Google Translate to counter check the words they wanted to be translated in both Deutsch and Spanish. Your profile speaks of an inclination towards software skills, why do you want to join an analytics company? Justify your action in two reasons as to why are you sitting here interviewing for the post of a data scientist rather than apply for a software engineer when this CV speaks highly of computer science? What is Finite Element Method? Explain. How relevant is your work in Computer Vision? Breakdown the tagline of Audi and translate accordingly. What is "Technik für Mobel" ? What are your current projects? Answer : Microsoft Xbox Kinect, Gesture Recognition. Counter question : But at Musimga you'd be doing far simpler stuff.? Counter suggestion : Why don't you go for MS?


Tips: Keep your cool during counter questions. Prepare your profile and CV well. Rest all is your hard work and groomed personal talents and acquired skills you learnt over the internet.

Skills: Ability To Cope Up With Stress, Spanish, German, Finite Element Modeling - FEM, Foreign Language
College Name: NIT Raipur
Funny Moments: Another HR enters in the midst of my interview and asks with bewildered amazement : What language is he speaking?
The other HR, "German".

I applied via Recruitment Consultant and was interviewed in Jun 2021. There were 4 interview rounds.

Interview Questionnaire 

1 Question

  • Q1. 1. Describe one of your projects in detail. 2. Explain Random Forest and other ML models 3. Statistics
  • Ans. 

    Developed a predictive model for customer churn using Random Forest algorithm.

    • Used Python and scikit-learn library for model development

    • Performed data cleaning, feature engineering, and exploratory data analysis

    • Tuned hyperparameters using GridSearchCV and evaluated model performance using cross-validation

    • Random Forest is an ensemble learning method that builds multiple decision trees and combines their predictions

    • Other...

  • Answered by AI

Interview Preparation Tips

Interview preparation tips for other job seekers - Prepare your projects well and questions around that

Skills evaluated in this interview

Interview experience
4
Good
Difficulty level
Moderate
Process Duration
2-4 weeks
Result
Selected Selected

I applied via Naukri.com and was interviewed in Oct 2022. There were 5 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 - Aptitude Test 

Basic statistics questions and coding questions on modeling

Round 3 - One-on-one 

(1 Question)

  • Q1. Discussion was mainly on the project I have worked on
Round 4 - One-on-one 

(1 Question)

  • Q1. Project discussion 2 case studies Questions on sensitivity analysis Precision recall with non binary data
Round 5 - HR 

(1 Question)

  • Q1. How would you solve conflicts between two people in your team? Why are you leaving your company?
  • Ans. 

    To solve conflicts between two people in my team, I would encourage open communication, facilitate a discussion, and find a mutually agreeable solution.

    • Encourage open and honest communication between the two individuals involved

    • Facilitate a discussion where both parties can express their concerns and perspectives

    • Identify common ground and areas of agreement

    • Encourage empathy and understanding towards each other's viewpo...

  • Answered by AI

Interview Preparation Tips

Interview preparation tips for other job seekers - Be confident on the skills that your are showing in your CV. Be truthful if you don't know anything and don't bush around. If you are okay working for more than 14hrs and also in the weekends then please go ahead :)

I applied via Naukri.com and was interviewed before Aug 2021. There were 4 interview rounds.

Round 1 - Coding Test 

Machine learning MCQ questions. 2 model-building questions.

Round 2 - Technical 

(1 Question)

  • Q1. Basic statistics, concertation of any ML algo based on the project on resume or previous works,
Round 3 - Technical 

(1 Question)

  • Q1. Interview with data science manager. Mostly focuses on projects on your resume.
Round 4 - HR 

(1 Question)

  • Q1. Salary related discussion and basic HR questions.

Interview Preparation Tips

Interview preparation tips for other job seekers - Go through the resume in detail and focus on explaining the projects and algorithms worked on.

I applied via Company Website and was interviewed in Feb 2022. There were 2 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 - Aptitude Test 

There were 13 questions
2 was coding and other multiple choice questions
one coding question was wine quality test

Interview Preparation Tips

Interview preparation tips for other job seekers - Advanced ML questions will be there

I applied via Referral and was interviewed in May 2021. There were 3 interview rounds.

Interview Questionnaire 

1 Question

  • Q1. Total 3 rounds. 1st round is purely on programming ability on Python and SQL. Simple to algorithmic level. Binary search, recursive querying. 2nd round was on understanding the candidate and his/her work e...

Interview Preparation Tips

Interview preparation tips for other job seekers - This is for two types of candidates. If you're from engineering background(btech/be) prepare well for programming round. The rest is taken care with minimal knowledge. If you're not from engineering background don't waste your time and effort in attending the interviews. They will finally reject you even though you are qualified in all the rounds and will select an engineering guy.
Interview experience
3
Average
Difficulty level
-
Process Duration
-
Result
-
Round 1 - Coding Test 

Python questions moderate to difficult

Round 2 - One-on-one 

(2 Questions)

  • Q1. Introduction about self
  • Ans. 

    I am a data scientist with a background in statistics and machine learning.

    • I have a Master's degree in Data Science from XYZ University.

    • I have experience working with Python, R, and SQL for data analysis.

    • I have worked on projects involving predictive modeling and data visualization.

    • I am passionate about using data to drive business decisions and solve complex problems.

  • Answered by AI
  • Q2. Python basics like list, dictionary
Interview experience
3
Average
Difficulty level
Moderate
Process Duration
Less than 2 weeks
Result
Not Selected

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

Round 1 - Coding Test 

Asked 2 to 3 python coding question...

Interview Preparation Tips

Interview preparation tips for other job seekers - prepare technical round

Blackstraw AI Interview FAQs

How many rounds are there in Blackstraw AI Senior Data Scientist interview?
Blackstraw AI interview process usually has 1 rounds. The most common rounds in the Blackstraw AI interview process are Technical.
How to prepare for Blackstraw AI Senior 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 Blackstraw AI. The most common topics and skills that interviewers at Blackstraw AI expect are Computer Vision, Natural Language Processing, Predictive Analytics and Team Handling.
What are the top questions asked in Blackstraw AI Senior Data Scientist interview?

Some of the top questions asked at the Blackstraw AI Senior Data Scientist interview -

  1. 1. difference between list & tuple 2. describe your day-to-day work 3. describe...read more
  2. difference between regression & classification based algorit...read more
  3. difference between RNN & ...read more

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Blackstraw AI Senior Data Scientist Interview Process

based on 1 interview

Interview experience

5
  
Excellent
View more
Blackstraw AI Senior Data Scientist Salary
based on 6 salaries
₹18 L/yr - ₹25 L/yr
19% less than the average Senior Data Scientist Salary in India
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