Process
The process consisted of three phone interviews. I suspect there was a final in-office interview.
The first interview covered general math and concepts of computer science and functional programming. I was given a few brain teasers:
- 7 to the power of 3
- The number of edges in a cube
- A classic dice roll exercise
The second interview was centered around designing algorithms, focusing mainly on computer science. The tasks involved shuffling, sorting, and using arrays.
The last interview featured mostly puzzles, including a rather complicated dice roll exercise and another puzzle.
Questions
You have two identical plates that break when thrown higher than a specific number of stories. You are in a 100-story building.
What is the least number of tries you must do to determine the story number after which the plates break when thrown off the building?
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Interview Statistics
The following metrics were computed from 6 interview experiences for the Jane Street Software Development role.
Success Rate
Jane Street's interview process for their Software Development roles is very selective, failing most engineers who go through it.
Experience Rating
Candidates reported having very good feelings for Jane Street's Software Development interview process.
Jane Street Work Experiences
- 4.0Great WL BalanceSoftware Engineer • Former EmployeeNew York, NYJanuary 7, 2026Pros: Good work-life balance and pay.Cons: It is very team-dependent on how easy your job will be.
- 5.0Good Food, Stressful HoursSodtawe Engineering • Former EmployeeLondon, England, United KingdomJune 15, 2024Pros: Good work-life balance and food.Cons: Very competitive and stressful, with long hours.
- 3.0They're okaySoftware Engineer • Current EmployeeNew York, NYMarch 4, 2026Pros: Fun work. I like coding a lot, and my coworkers do too.Cons: There were so many hours of working per week.
Jane Street Interview Questions
