I applied through college or university. I interviewed at Bloomberg (London, England) in Oct 2024
Interview
1) A call with HR where they tell you more about the role and ask you some general statistics and computer science questions
2) A technical round with leetcode style problems, machine learning and database design questions
3) Another technical round where you do some live eda in pandas
4) Senior manager interview. Mostly behavioural, with emphasis on past projects and company culture
Interview questions [1]
Question 1
1) Identify inconsistencies in a given data taxonomy
2) What's over and underfitting and how to fix them. Difference between precision and recall and when it makes more sense to use each metric.
3) Identify and fix data quality issues in a given dataset
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).