How to Prepare for the Quant Interviews

The Quantitative Research & Trading Internship starts in June 2026. Here’s what to expect from the interview process and how to prepare.

Internship interview process

1. Online Math test

A take-home challenge focused on probability, logic, and mathematical reasoning. You can complete the test whenever it suits you.

The problems are intentionally low to medium complexity. We want to see how you think, how comfortable you are with numbers, and whether you can reason clearly under uncertainty.

2. Chat with a Recruiter

This is an introductory conversation.

The goal is to help you understand who we are, how the internship works, and whether Wincent is a place where you would enjoy working. There is no preparation required. Come with your questions about the company, team, culture, or the internship itself.

3. Quant Interview 45min

You’ll work through a set of medium-difficulty problems with one of our researchers or traders.

We care more about your thought process than whether you immediately arrive at the correct answer. Explain your reasoning, talk through your assumptions, and be prepared to adjust your approach when new information appears.

4. Quant Interview 90min

The interview starts with a discussion about your background, interests, and what motivates you.

We then move on to more challenging quantitative problems designed to assess your intuition, problem-solving ability, and how you approach unfamiliar situations. We’re interested in how you think, not whether you’ve seen a particular problem before.

5. On-site Interview

The final stage consists of a series of betting and decision-making games.

These exercises help us understand how you reason about probabilities, expected value, risk, and uncertainty. The goal isn’t to find the perfect answer. It’s to observe how you make decisions when information is incomplete.

How to Prepare

The best preparation is solving problems. Focus on probability, expected value, combinatorics, logic puzzles, and mental math. If you’re comfortable breaking down unfamiliar problems and explaining your reasoning, you’re already preparing for the most important part of the process.

Remember: we are not looking for someone who has memorized every interview question on the internet. We are looking for people who enjoy solving hard problems and can think clearly when faced with something new.