The process took 3 months. I interviewed at Bloomberg (Princeton, NJ) in Nov 2025
Interview
The interview process has 4 rounds: recruiter screen, 2 technical rounds and one final round with the HM.
The 1st technical round was about data modeling, taxonomies, data cleanliness and Leetcode.
The 2nd technical round focused on pandas, and using it to answer questions from a dataset. Statascratch should help, but you should also know the various functions of pandas by heart.
Consists of 3 parts. The first is a leetcode-easy python coding problem. The next is a real-world solution based on statistical knowledge. The last is a taxonomy problem that requires you to find out flaws in the original one.
I applied through a recruiter. I interviewed at Bloomberg (New York, NY)
Interview
I was contacted by a recruiter for the role. After an initial HR screening, there were four rounds of interviews. The first round was with the hiring manager/team lead and focused on my previous experience and general questions related to the role. The second round was a technical interview with two team members and included a live Python coding exercise. The third round was a take-home Excel assessment with basic questions related to financial statements. The final round was on-site with two team leads and included a mix of behavioral questions and discussion about past experience.
For the Python round, focus on solving LeetCode easy-level questions and reviewing basic Data Modeling, ML and Stats.
Overall, it was a positive experience and HR was quick with updates throughout the process.
The first round was behavioral, followed by a technical interview focused on data modeling concepts and data quality considerations rather than coding. The second technical round involved exploratory data analysis using Python and pandas.
Interview questions [1]
Question 1
Find any issues in this dataset (picture of a dataset).