Quant interviews are brutal. Master them at light speed
Daily practice that gets you hired
Practice the exact types of mental math and brain teasers that elite trading firms use to test candidates. Build confidence with problems modeled after real interview questions.
In a few weeks of consistent practice, mental arithmetic that used to take 30 seconds happens in 5. Brain teasers that seemed impossible become recognizable patterns.
Prepare for your interview at leading firms
Not affiliated with or endorsed by any firms shown.
Practice problems sourced and modeled from real interviews at the firms you want to work for. We've studied what leading prop shops and hedge funds actually ask, then built training that develops those exact skills
These skills translate globally. Whether you're interviewing in New York, London, Hong Kong, or Singapore, the fundamentals are the same. Train once with QuantJam and you're prepared for opportunities across every major financial hub.
We gathered it all for you
We've compiled problems from legendary prep books, real interviews, and trusted sources into one comprehensive platform.
- 150+ handpicked problems — heavily inspired by trusted books such as "A Practical Guide to Quantitative Finance Interviews"
- Real candidate questions — crowdsourced from applicants who've faced real rounds at top trading firms
- Mental math drills — speed training that transforms 30-second calculations into 5-second reflexes
- Sequence training — pattern recognition challenges designed to help you ace online assessments
- Coming soon — career resources like resume templates and firm research materials to prepare you for final rounds
Plans and pricing
Simple, transparent pricing. All plans include complete access to every problem, drill, and resource on the platform. Choose the duration that fits your prep schedule.
To upgrade to one of our premium plans, please log in or sign up.
Frequently asked questions
Have questions? We've got answers. Here are some of the most common ones, but feel free to reach out at hi@quantjam.com if you need more help.