Basic coding skills were judged. Case studies based on retail in F2F.
Senior Data Scientist Interview Questions
3,397 senior data scientist interview questions shared by candidates
I had a 45-minute technical interview with a Senior Data Scientist consultant. The session included three SQL questions and one Python question, focused on sales transactions and data manipulation. One point of friction was that the interviewer asked me not to use window functions and instead pushed for a GROUP BY solution. While I adapted under pressure, I felt the conversation was more rigid than collaborative. Overall, the process was structured and timely, but I would have appreciated more flexibility in the problem-solving approach — especially for senior-level candidates who may use different methods to arrive at the correct solution.
questions about resloving situations data science questions: about ML models, algothams, how to evaluate models
Derive MLE, Bayes theorem applied, confusion-matrix questions, classical test that detects well a rare disease and to calculate the risk of having that disease given tested positive
General questions from python, machine learning and NLP
what type of forecasting algorithms have you worked with
home assignment of recommendation system to build. the model should recommend for n of coins and their value in usd, by a data of past transactions.
Questions on LLM, projects in resume
The technical test focused on implementing a RAG (Retrieval-Augmented Generation) system for Customer Support.
What is bias/variance tradeoff? What are some regularization techniques? Explain each one. What are some techniques to assess goodness of fit?
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