Upload Button Icon Add office photos

Filter interviews by

Appen Senior Data Scientist Interview Questions and Answers

Updated 8 Apr 2024

Appen Senior Data Scientist Interview Experiences

1 interview found

Interview experience
3
Average
Difficulty level
Easy
Process Duration
2-4 weeks
Result
Selected Selected

I applied via LinkedIn and was interviewed before Apr 2023. There were 3 interview rounds.

Round 1 - One-on-one 

(1 Question)

  • Q1. General intro round with the hiring manager about past experiences
Round 2 - Assignment 

Mine was a cv take home test - classification and ocr

Round 3 - Technical 

(1 Question)

  • Q1. Presentation of the assessment and sone questions around it

Interview questions from similar companies

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

I applied via Naukri.com

Round 1 - Coding Test 

AWS and Python, basic Machine learning questions

Round 2 - Coding Test 

Python, project description, AWS, in build package

Round 3 - Case Study 

Basic Machine learning data science

Interview experience
4
Good
Difficulty level
Moderate
Process Duration
Less than 2 weeks
Result
Not Selected

I applied via Naukri.com and was interviewed in Aug 2024. There were 3 interview rounds.

Round 1 - Coding Test 

Python Coding Questions with

Round 2 - Coding Test 

Bubble sort example Question using python

Round 3 - Case Study 

Previous projects based questions

Interview experience
5
Excellent
Difficulty level
-
Process Duration
-
Result
-
Round 1 - Technical 

(2 Questions)

  • Q1. Questions were asked related to ML modelling process
  • Q2. Basic python coding
Interview experience
4
Good
Difficulty level
Moderate
Process Duration
Less than 2 weeks
Result
Not Selected

I applied via Recruitment Consulltant and was interviewed in Nov 2023. There was 1 interview round.

Round 1 - Technical 

(2 Questions)

  • Q1. What is Transformers and how they work
  • Ans. 

    Transformers are models used in natural language processing tasks, known for their ability to handle long-range dependencies.

    • Transformers use self-attention mechanism to weigh the importance of different words in a sentence.

    • They consist of encoder and decoder layers, with each layer containing multi-head attention and feed-forward neural network.

    • Examples of transformer models include BERT, GPT-3, and TransformerXL.

  • Answered by AI
  • Q2. How to train a model with imbalance data
  • Ans. 

    Use techniques like oversampling, undersampling, SMOTE, or ensemble methods to train a model with imbalanced data.

    • Use oversampling to increase the number of minority class samples.

    • Use undersampling to decrease the number of majority class samples.

    • Use Synthetic Minority Over-sampling Technique (SMOTE) to generate synthetic samples for the minority class.

    • Utilize ensemble methods like Random Forest or Gradient Boosting to

  • Answered by AI

Skills evaluated in this interview

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

I applied via campus placement at Thapar Institute of Engineering and Technology (TIET) and was interviewed before Sep 2023. There were 2 interview rounds.

Round 1 - Coding Test 

3 coding questions of data structures

Round 2 - HR 

(2 Questions)

  • Q1. Previous work experience and skills
  • Ans. 

    I have 5 years of experience in data analysis, machine learning, and statistical modeling. Proficient in Python, R, SQL, and Tableau.

    • 5 years of experience in data analysis, machine learning, and statistical modeling

    • Proficient in Python, R, SQL, and Tableau

    • Developed predictive models for customer churn prediction using machine learning algorithms

    • Performed data cleaning, preprocessing, and visualization for large dataset...

  • Answered by AI
  • Q2. Guesstimate about number of flights in India
  • Ans. 

    There are approximately 2.5 million flights in India annually.

    • India is one of the fastest growing aviation markets in the world.

    • Major airports like Delhi, Mumbai, Bangalore, and Chennai handle a large number of flights daily.

    • Airlines like IndiGo, SpiceJet, and Air India operate numerous domestic and international flights.

    • The number of flights has been increasing steadily over the years due to growing demand for air tra

  • Answered by AI
Interview experience
5
Excellent
Difficulty level
Moderate
Process Duration
Less than 2 weeks
Result
Selected Selected

I applied via Approached by Company and was interviewed in Nov 2024. There were 3 interview rounds.

Round 1 - HR 

(1 Question)

  • Q1. Basicn details to check for qualifications
Round 2 - Technical 

(1 Question)

  • Q1. About my projects
Round 3 - Technical 

(1 Question)

  • Q1. More details about ML models
Interview experience
2
Poor
Difficulty level
Moderate
Process Duration
Less than 2 weeks
Result
Selected Selected

I applied via Job Portal and was interviewed before Nov 2023. There were 2 interview rounds.

Round 1 - Coding Test 

Write a code for Factorial series

Round 2 - Technical 

(2 Questions)

  • Q1. Deep learning related
  • Q2. Maximum GenAI Based question
Interview experience
2
Poor
Difficulty level
-
Process Duration
-
Result
-
Round 1 - Technical 

(2 Questions)

  • Q1. General ML questions
  • Q2. General dl. Questions

Interview Preparation Tips

Interview preparation tips for other job seekers - Dont go to citiustech
Interview experience
2
Poor
Difficulty level
Moderate
Process Duration
Less than 2 weeks
Result
No response

I applied via Company Website and was interviewed in Aug 2023. 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 tips
Round 2 - One-on-one 

(1 Question)

  • Q1. Concepts and tools
Round 3 - Coding Test 

Coding on the tools we use

Round 4 - HR 

(1 Question)

  • Q1. Not cleared the round

Interview Preparation Tips

Interview preparation tips for other job seekers - not clear

Appen Interview FAQs

How many rounds are there in Appen Senior Data Scientist interview?
Appen interview process usually has 3 rounds. The most common rounds in the Appen interview process are One-on-one Round, Assignment and Technical.

Tell us how to improve this page.

People are getting interviews through

based on 1 Appen interview
Job Portal
100%
Low Confidence
?
Low Confidence means the data is based on a small number of responses received from the candidates.
Freelancer
17 salaries
unlock blur

₹1 L/yr - ₹5 L/yr

Search Engine Evaluator
13 salaries
unlock blur

₹1.3 L/yr - ₹5 L/yr

Software Development Engineer
9 salaries
unlock blur

₹7.7 L/yr - ₹14 L/yr

Transcriber
8 salaries
unlock blur

₹0.8 L/yr - ₹4.5 L/yr

Social Media Analyst
6 salaries
unlock blur

₹1.2 L/yr - ₹3 L/yr

Explore more salaries
Compare Appen with

Lionbridge Technologies

3.7
Compare

Cognizant

3.8
Compare

TCS

3.7
Compare

Wipro

3.7
Compare

Calculate your in-hand salary

Confused about how your in-hand salary is calculated? Enter your annual salary (CTC) and get your in-hand salary
Did you find this page helpful?
Yes No
write
Share an Interview