Jane Street Software Engineer Interview Questions
Master your tech interview with our curated database of real questions from top companies.
Implement Connect Four with bottom push-up
Implement a Connect Four variant where when a player inserts a disc into a column, the disc moves to the bottom cell of that column and pushes all exi...
Calculate win chance in three-player dice game
Probability of Winning with Rerolls on Ties Setup - Three players: A (you), B, and C. - A fair six-sided die is used. - B and C have already rolled an...
Use Excel formulas to compute haircuts
You are given an Excel worksheet with columns such as Asset, Market Value, and Haircut %. Using only cell references (no copy-paste of numeric values)...
Answer why Jane Street
HR Screen Behavioral Question: Why Jane Street? You are interviewing for a Software Engineer role. In 60–90 seconds, explain: 1. Why Jane Street speci...
Design sequential reveal classification and policy
FashionMNIST: Row-wise Reveal Evaluation, Reward-Optimal Masking, Augmentation, and Early Exit Context You have a trained CNN classifier for FashionMN...
Calculate dice game win probability
Dice Game With Tie Rerolls: Probability You Eventually Win Context - Three players each roll a fair standard 6-sided die. - The highest roll wins. - I...