I got the interview call through Instahyre website. The interviewer was patient and friendly. The questions asked were: 1) Introduce about yourselves. 2) What is your exposure to Python and SQL. Rate it in 10. 3)Create dataframe for an app that you commonly use? 4)Write a sql query to fetch top 5 influencers from Chennai in facebook 5)How do you handle data training in python? 6)How do you handle outliers in dataset? 7)What are the assumptions for linear regression in python 8)What is dimension table and fact table? What are the differences? 9)What is the difference between union and union all in sql? 10)What is the difference between delete and truncate statement in sql? 11)What is the default kind of join? 12)What is the difference between primary key and foreign key?

Aptitude, Technical Skill, Organisational fit. Started with pen and paper round of aptitude test. After clearing first round, be prepared for some SQL grinding. After that you will have one round of interview process with business questions. Then final round will be cultural fit.

4 rounds 1) probability questions MCQ 2) Technical interview (SQL, Data Engineering) and puzzles 3) Case study - overall 4) case study - Deep dive (expected to answer with the help of Machine Learning)