ZS interview experience Real time questions & tips from candidates to crack your interview
Data Science Associate
ZS
3 rounds | 3 Coding
problems
Selected Interview preparation journey
Preparation
Duration: 6 months
Topics: Python, Machine Learning, Deep Learning, Statistics, OOPS.
Tip 1 : Do industry level projects.
Tip 2 : Understand the mathematics behind every algorithm.
Tip 3 : Practice python basics.
Application process
Where: Referral
Eligibility: 7 CGPA
Tip 1: Try to include industry level Data science projects.
Tip 2: One page resume
Interview rounds
01
Round
Medium
Online Coding Test
Duration60 minutes
Interview date15 Oct 2021
Coding problem1
It was a machine learning problem to be solved in two days.
1. Sentiment Analysis
To predict sentiment scores and one more score from text data, and combine the scores in 60:40 ratio and submit the combined scores.
Problem approach
Tip 1 : First train one model for sentiment scores
Tip 2 : Train another model for another score criteria.
Tip 3 : Check the evaluation metrics and combine the scores in given ratio.
02
Round
Medium
Assignment
Duration60 minutes
Interview date25 Oct 2021
Coding problem1
1. Machine Learning Question
To make the presentation of the Machine Learning round held in previous round.
Problem approach
Tip 1 : Describe problem statement in first slide
Tip 2 : Include your basic approach and analysis.
Tip 3 : Include evaluation metrics and conclude with why the solution is right and best in all aspects.
03
Round
Medium
HR Round
Duration60 minutes
Interview date15 Dec 2021
Coding problem1
It was HR+ Data science technical round.
1. Technical Questions
Explain XGBoost in detail.
Explain Decision trees.
When should we use decision and random forest.
Explain one of your best project and learning from that project.
Explain what you learned in you data science certification.
Why you are the best fit.
One puzzle.
one coding question: Count unique words in a sentence in ascending order and present your results in a dictionary.
Problem approach
Tip 1 : Always go slow in your explanations
Tip 2 : Explain every thing in details, also let them know if you have any doubts in the question. This make them feel that you are interested in the question.
Tip 3 : Always ask questions in the end but related to your domain only.
Here's your problem of the day 
Solving this problem will increase your chance to get selected in this company
Skill covered: Programming
What is recursion?
Choose another skill to practice
Similar interview experiences
Software Engineer
4 rounds | 4 problems
Interviewed by ZS
Selected 
2009 views
0 comments
0 upvotes
Business Technology Solutions Associate
3 rounds | 10 problems
Interviewed by ZS
Selected 1304 views
1 comments
0 upvotes
Analytics Consultant
3 rounds | 10 problems
Interviewed by ZS
Selected 907 views
0 comments
0 upvotes
Business Technology Development Associate
4 rounds | 2 problems
Interviewed by ZS
Selected 483 views
0 comments
0 upvotes