Helpful (2)
Application
I applied online. The process took 4+ weeks. I interviewed at Jane Street (London, England) in June 2014.
Interview
Applied online and got a reply by mail within 10 days.
First round : Excel task. Check a series of trades on a spreadsheet.
Second round : telephone interview (20-30 min) : Same kind of questions as the one you will find on Glassdoor, mostly mental math, brainteasers and probability. No pen or paper.
- 200,000 minus 222
- Probability of a 3-3 tie on a 7 game series.
- Today is Friday what is the day in ten years time
- The outside of a cube is painted black. It is then divided into 27 equally sized smaller cubes. If a smaller cube is selected at random and thrown on the floor what is the probability that all five visible faces are NOT black?
- Angle between minute hand and clock hand at 9:30
Third round : programming task. Write a program to process a text file with trading data and output a file with PnL for each security on the file.
Fourth round : telephone interview with a trader (1 hour). Problem solving :
- Two spies have to meet. Each one will arrive at a random time (uniformely distributed) within a 1 hour interval, and stay for 10 minutes. Calculate the probability that the spies actually meet.
- Three cowboys A, B and C have a truel (like a duel but with 3 people). A has a 1/3 probability of shooting his target. B 1/2 and C 1. Each one will attempt to shoot the cowboy who is still alive with better shooting probability. A starts the shootout, then B and C (if still alive). Calculate the probability that A wins the shootout.
Fifth round : telephone interview with a trader (1 hour). Problem solving :
- Design a betting system on a 7 series game beetween two teams A and B (even odds at each game), such as if A wins the series your cumulated gain is exacly £100 and if A looses your cumulated loss is exactly £100.
Interview Questions
Helpful (3)
Interview
First Round: Excel task, had to correct values in a big table of trades using either VBA or functions
Second Round: Telephone interview. Questions involved
- 1,000,000 minus 1111
- 17% of 256
- Today is Friday what is the day in ten years time
- Expectation when rolling two dice
Interview Questions
Would you like us to review something? Please describe the problem with this {0} and we will look into it.
Your feedback has been sent to the team and we'll look into it.
This will replace the current featured interview for this targeted profile. Are you sure you want to replace it?
Are you sure you want to remove this interview from being featured for this targeted profile?
Jane Street Response
seconds ago
Edit • Delete