Recruiter screen, technical phone, full-day onsite with operational scenario interview, coding, brainteasers, and behavioral. Ops at Jane Street is technically demanding.
Walk me through a process you've automated.
Tell me about debugging an operational issue under time pressure.
Describe collaborating with traders during a market event.
How do you prioritize when multiple incidents hit at once?
Researcher
onsite
· Difficulty 5/5
Recruiter screen, technical phone, full-day onsite with research deep-dive, coding, stats, and behavioral. Research at Jane Street is collaborative.
Walk me through a research project you led.
Tell me about a hypothesis that proved wrong.
Describe partnering with traders on a strategy.
How do you stay creative in a competitive landscape?
Trader
onsite
· Difficulty 5/5
Recruiter screen, multiple rounds of trading games (poker-style probability + estimation), full-day onsite with trading discussion, brainteasers, behavioral. Jane Street traders are evaluated on probability + game-playing intuition.
Walk me through a probability puzzle (the Monty Hall, or similar).
Tell me about handling a trading-loss moment.
Describe collaborating with engineering on a tool you wanted.
How do you decide when to size up a trade vs. size down?