jane_street
18 interview questions available
Transform sparse time-code stream to dense rows
easy
Feb 12, 2026
Sort trade executions into a canonical order
easy
Dec 15, 2025
Design exchange–trading system message flow
easy
Dec 15, 2025
Validate order book data across multiple databases
easy
Dec 15, 2025
Solve probability and game-theory puzzles
easy
Dec 1, 2025
Analyze trading RFQ competitiveness data
medium
Oct 14, 2025
Solve queue switch and coin change puzzles
medium
Oct 14, 2025
Use Excel formulas to compute haircuts
Medium
Sep 6, 2025
Calculate win chance in three-player dice game
medium
Sep 6, 2025
Answer why Jane Street
easy
Sep 6, 2025