Barclays IB Quantitative Analyst Interview Questions

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IB Quantitative Analyst Interview

Oct 27, 2025

Anonymous employee

Accepted offer

Positive experience

Easy interview

Application

I applied through college or university. The process took 1 day. I interviewed at Barclays (Noida) in Aug 2025

Interview

OA had timed sections. The sections were finance, probability and statistics, ai/ml, python and oops, DSA. This followed 3 rounds of interviews. First two were technical rounds followed by a HR round.

Interview questions [5]

Question 1

Where have you used ai for automation?

Answer question

Question 2

Questions were majorly on decision trees, bias and variance, data imbalance, boosting techniques, activation functions, gradient descent and MLP’s.

Answer question

Question 3

What is the advantage of L1 regularization over L2 regularization and why, how do you compute the differential of regularization term in L1 regularization

Answer question

Question 4

What are lambda functions, list comprehension and some basics of oops.

Answer question

Question 5

What are the major challenges you have faced working on a project involving ai?

Answer question

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