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      Data Scientist Interview

      30 Oct 2023
      Anonymous interview candidate
      Londonderry County Borough, Northern Ireland
      No offer
      Neutral experience
      Difficult interview

      Application

      I applied through university. The process took 1 week. I interviewed at Tata Consultancy Services (Londonderry County Borough, Northern Ireland) in Feb 2023

      Interview

      Online interview with a manager, highly technical with coding exercise, questions about pandas general data science and what is charger based on. Overall difficulty interview with 2 hours duration. I remember it took us 30 minutes to go through pandas questions

      Interview questions [1]

      Question 1

      What is chat get based kn
      Answer question
      1

      Other Data Scientist interview reviews for Tata Consultancy Services

      Data Scientist Interview

      25 Jun 2026
      Anonymous interview candidate
      No offer
      Neutral experience
      Average interview

      Application

      I interviewed at Tata Consultancy Services

      Interview

      Telephone screening Profile discussion R1: written R2: discussion on R1 and other R3: manager R4: Hr First they will share the link and we have to open and answer the things it might have some mcq along with coding and other technical questions..

      Interview questions [1]

      Question 1

      About my current role and responsibilities
      Answer question

      Data Scientist Interview

      7 May 2026
      Anonymous employee
      Noida
      Accepted offer
      Neutral experience
      Average interview

      Application

      I applied through other source. The process took 2 months. I interviewed at Tata Consultancy Services (Noida)

      Interview

      During my recent experience with technical interviews, I encountered a mix of moderate level questions and basic coding questions, which included SQL, NumPy, pandas, sklearn, matplotlib, pyplot, and scikitlearn. The interview process involved delayed scheduling of rounds, and there was no follow-up at times, although everything was updated on the portal, even if it could be slow. Most of the questions tested fundamental programming skills and data manipulation techniques, especially with trees and forest algorithms. I also faced practical tasks involving chatbot development, LLM integration, and working with chat models. Understanding concepts related to ANN, CNN, and RNN proved crucial, as the evaluators were keen on assessing both theoretical knowledge and implementation skills. While the interview flow was not entirely seamless, it highlighted the importance of hands-on experience with data analysis libraries and machine learning frameworks. Preparing for these rounds required revisiting coding basics, mastering data structures, and practicing model building with Python tools. Overall, the process was challenging yet insightful, emphasizing that consistent practice and familiarity with libraries such as NumPy, pandas, matplotlib, and sklearn can significantly improve problem-solving efficiency and performance during technical interviews.

      Data Scientist Interview

      15 Apr 2026
      Anonymous interview candidate
      Noida
      Declined offer
      Positive experience
      Average interview

      Application

      I interviewed at Tata Consultancy Services (Noida)

      Interview

      good excellent simple basic questions. python, sql and Ml and genai and RAg and DL , Very good experience and good hiring manager discussion. Recommended to attend interviews.All the best