Motivational Interview, why I want to join, knowledge about consulting, expectations, etc
Then Technical Interview, very similar to standard hackerrank questions for data science/ML, a lot of pandas manipulation, especially focussed on date/time columns and conversions
I had 3 rounds, one with RRHH, one technical interview (with live coding) and the last one was just live coding. The last round was a complete disaster, the interviewer doesn't want to be there, was just looking the phone the whole time, when speaking he doesn't look to the camera so the voice was horrible and hard to hear him.
Interview questions [1]
Question 1
difference between sql and nosql. 2 leetcode questions on the first round. one python question, one pyspark question and one sql question
It was for 1.5 hr, asked abt oops and adv sql. But rejected immediately the next round no reason ntg though the interview went smooth and got a good feedback from interview
I applied through a recruiter. I interviewed at Boston Consulting Group (Bengaluru) in Mar 2026
Interview
Got a call from Naukri.
Step 1: OA on CodeSignal. UI was really bad, solved 2/4 questions and got selected.
Step 2: Online interview. Basic SQL and Python questions. Asked to convert SQL to PySpark. Easy.
Step 3: In-person interview. Asked mostly about work experience, tech stacks used, etc. Asked Python questions based on string. Asked to optimize a PySpark code snippet.
Interview questions [1]
Question 1
Given a string, find out the frequency of each character and its first occurrence (first index).
Data Engineer applicants have rated the interview process at Boston Consulting Group with 3.5 out of 5 (where 5 is the highest level of difficulty) and assessed their interview experience as 50% positive. To compare, the company-average is 65.8% positive. This is according to Glassdoor user ratings.
Candidates applying for Data Engineer roles take an average of 30 days to get hired, when considering 4 user submitted interviews for this role. To compare, the hiring process at Boston Consulting Group overall takes an average of 32 days.
Common stages of the interview process at Boston Consulting Group as a Data Engineer according to 4 Glassdoor interviews include:
One on one interview: 33%
Phone interview: 22%
Skills test: 11%
IQ intelligence test: 11%
Presentation: 11%
Drug test: 11%
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