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Prop / Market Maker · Multi-asset market maker · New York City
One of the most prestigious and hardest trading interviews, probability, estimation, and live market-making games, judged on how you think.
Jane Street trades ETFs, options, bonds, and crypto as a market maker, with a famous OCaml/functional-programming engineering culture. Its interviews are widely cited among the toughest in the industry.
The through-line is decision-making under uncertainty: they care more about how you reason, narrate, and update on new information than whether you nail a single number.
Roles they hire
Quant Trader · Quant Researcher · Software Engineer
Interview processas publicly reported
- 1
Application & optional online test
Human recruiter review (they state no AI resume screening); sometimes a quantitative online assessment, probability, combinatorics, expected value, estimation under time pressure.
- 2
First technical screen
~30–60 min with a trader or researcher: probability, mental math, and brainteasers.
- 3
Technical rounds
Escalating difficulty, moving into hypothetical decision-making and risk-management games (EV, game theory).
- 4
Final / superday
Behavioral plus live market-making and trading-simulation games in real time.
What they test
Prep tips
- ▸Narrate your reasoning out loud and self-correct, they weight the process over the exact answer.
- ▸Drill EV and market-making intuition (fair value, spreads, updating on information) over raw arithmetic speed; read their published probability material.
India recruiting
No dedicated India trading office, but Jane Street recruits from top IITs (Bombay/Delhi/Madras) for roles based abroad (HK/London/NY). Campus recruiting: yes; local office: no.
Sources
Interview processes change and vary by role, office, and year. This guide reflects publicly reported experiences and is not affiliated with Jane Street.